| Message ID | 20240812144131.369378-13-quic_depengs@quicinc.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | media: qcom: camss: Add sm8550 support | expand |
On 12/08/2024 15:41, Depeng Shao wrote: > The CSID in sm8550 is gen3, it has new register offset and new > functionality. The buf done irq,register update and reset are > moved to CSID gen3. > > The sm8550 also has a new block is named as CSID top, CSID can > connect to VFE or SFE(Sensor Front End), the connection is controlled > by CSID top. > > Co-developed-by: Yongsheng Li <quic_yon@quicinc.com> > Signed-off-by: Yongsheng Li <quic_yon@quicinc.com> > Signed-off-by: Depeng Shao <quic_depengs@quicinc.com> > --- > drivers/media/platform/qcom/camss/Makefile | 1 + > .../platform/qcom/camss/camss-csid-gen3.c | 339 ++++++++++++++++++ > .../platform/qcom/camss/camss-csid-gen3.h | 26 ++ So this "gen2" and "gen3" stuff would make sense if we had a number of SoCs based on gen2 and gen3 which were controlled from the upper-level gen2.c and gen3.c. What you're submitting here is csid-780 so the file should be named csid-780. When we add 680 or 880 then it makes sense to try to encapsulate a class of generation into one file - potentially. I'd guess that was the intent behind gen2.c. TL;DR please name your file csid-xxx.c > .../media/platform/qcom/camss/camss-csid.c | 46 ++- > .../media/platform/qcom/camss/camss-csid.h | 10 + > drivers/media/platform/qcom/camss/camss.c | 91 +++++ > drivers/media/platform/qcom/camss/camss.h | 2 + > 7 files changed, 503 insertions(+), 12 deletions(-) > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-gen3.c > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-gen3.h > > diff --git a/drivers/media/platform/qcom/camss/Makefile b/drivers/media/platform/qcom/camss/Makefile > index e636968a1126..c336e4c1a399 100644 > --- a/drivers/media/platform/qcom/camss/Makefile > +++ b/drivers/media/platform/qcom/camss/Makefile > @@ -7,6 +7,7 @@ qcom-camss-objs += \ > camss-csid-4-1.o \ > camss-csid-4-7.o \ > camss-csid-gen2.o \ > + camss-csid-gen3.o \ > camss-csiphy-2ph-1-0.o \ > camss-csiphy-3ph-1-0.o \ > camss-csiphy.o \ > diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.c b/drivers/media/platform/qcom/camss/camss-csid-gen3.c > new file mode 100644 > index 000000000000..d96bc126f0a9 > --- /dev/null > +++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.c > @@ -0,0 +1,339 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * camss-csid-gen3.c > + * > + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module > + * > + * Copyright (c) 2024 Qualcomm Technologies, Inc. > + */ > +#include <linux/completion.h> > +#include <linux/delay.h> > +#include <linux/interrupt.h> > +#include <linux/io.h> > +#include <linux/kernel.h> > +#include <linux/of.h> > + > +#include "camss.h" > +#include "camss-csid.h" > +#include "camss-csid-gen3.h" > + > +#define CSID_TOP_IO_PATH_CFG0(csid) (0x4 * (csid)) > +#define OUTPUT_IFE_EN 0x100 > +#define INTERNAL_CSID 1 > + > +#define CSID_RST_CFG 0xC > +#define RST_MODE 0 > +#define RST_LOCATION 4 > + > +#define CSID_RST_CMD 0x10 > +#define SELECT_HW_RST 0 > +#define SELECT_SW_RST 1 > +#define SELECT_IRQ_RST 2 > + > +#define CSID_CSI2_RX_IRQ_STATUS 0x9C > +#define CSID_CSI2_RX_IRQ_MASK 0xA0 > +#define CSID_CSI2_RX_IRQ_CLEAR 0xA4 > +#define CSID_CSI2_RX_IRQ_SET 0xA8 > + > +#define CSID_CSI2_RDIN_IRQ_STATUS(rdi) (0xEC + 0x10 * (rdi)) > + > +#define CSID_CSI2_RDIN_IRQ_CLEAR(rdi) (0xF4 + 0x10 * (rdi)) > +#define CSID_CSI2_RDIN_IRQ_SET(rdi) (0xF8 + 0x10 * (rdi)) > + > +#define CSID_TOP_IRQ_STATUS 0x7C > +#define TOP_IRQ_STATUS_RESET_DONE 0 > + > +#define CSID_TOP_IRQ_MASK 0x80 > +#define CSID_TOP_IRQ_CLEAR 0x84 > +#define CSID_TOP_IRQ_SET 0x88 > + > +#define CSID_IRQ_CMD 0x14 > +#define IRQ_CMD_CLEAR 0 > +#define IRQ_CMD_SET 4 > + > +#define CSID_REG_UPDATE_CMD 0x18 > + > +#define CSID_BUF_DONE_IRQ_STATUS 0x8C > +#define BUF_DONE_IRQ_STATUS_RDI_OFFSET (csid_is_lite(csid) ? 1 : 14) > +#define CSID_BUF_DONE_IRQ_MASK 0x90 > +#define CSID_BUF_DONE_IRQ_CLEAR 0x94 > +#define CSID_BUF_DONE_IRQ_SET 0x98 > + > +#define CSI2_RX_CFG0_PHY_SEL_BASE_IDX 1 > + > +#define CSID_CSI2_RX_CFG0 0x200 > +#define CSI2_RX_CFG0_NUM_ACTIVE_LANES 0 > +#define CSI2_RX_CFG0_DL0_INPUT_SEL 4 > +#define CSI2_RX_CFG0_PHY_NUM_SEL 20 > + > +#define CSID_CSI2_RX_CFG1 0x204 > +#define CSI2_RX_CFG1_ECC_CORRECTION_EN 0 > +#define CSI2_RX_CFG1_VC_MODE 2 > + > +#define CSID_RDI_CFG0(rdi) (0x500 + 0x100 * (rdi)) > +#define RDI_CFG0_TIMESTAMP_EN 6 > +#define RDI_CFG0_TIMESTAMP_STB_SEL 8 > +#define RDI_CFG0_DECODE_FORMAT 12 > +#define RDI_CFG0_DT 16 > +#define RDI_CFG0_VC 22 > +#define RDI_CFG0_DT_ID 27 > +#define RDI_CFG0_EN 31 > + > +#define CSID_RDI_CFG1(rdi) (0x510 + 0x100 * (rdi)) > +#define RDI_CFG1_DROP_H_EN 5 > +#define RDI_CFG1_DROP_V_EN 6 > +#define RDI_CFG1_CROP_H_EN 7 > +#define RDI_CFG1_CROP_V_EN 8 > +#define RDI_CFG1_PIX_STORE 10 > +#define RDI_CFG1_PACKING_FORMAT 15 > + > +#define CSID_RDI_CTRL(rdi) (0x504 + 0x100 * (rdi)) > +#define RDI_CTRL_START_CMD 0 > + > +#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi) (0x548 + 0x100 * (rdi)) > +#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi) (0x54C + 0x100 * (rdi)) > + > +static inline int reg_update_rdi(struct csid_device *csid, int n) > +{ > + return BIT(n + 4) + BIT(20 + n); > +} > +#define REG_UPDATE_RDI reg_update_rdi > + > +static void __csid_configure_rx(struct csid_device *csid, > + struct csid_phy_config *phy, int vc) > +{ > + int val; > + > + val = (phy->lane_cnt - 1) << CSI2_RX_CFG0_NUM_ACTIVE_LANES; > + val |= phy->lane_assign << CSI2_RX_CFG0_DL0_INPUT_SEL; > + val |= (phy->csiphy_id + CSI2_RX_CFG0_PHY_SEL_BASE_IDX) << CSI2_RX_CFG0_PHY_NUM_SEL; > + > + writel(val, csid->base + CSID_CSI2_RX_CFG0); > + > + val = 1 << CSI2_RX_CFG1_ECC_CORRECTION_EN; > + if (vc > 3) > + val |= 1 << CSI2_RX_CFG1_VC_MODE; So again these are needless bit-shifts. #define CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN BIT(0) val = CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN; > + writel(val, csid->base + CSID_CSI2_RX_CFG1); > +} > + > +static void __csid_ctrl_rdi(struct csid_device *csid, int enable, u8 rdi) > +{ > + int val = 0; > + > + if (enable) > + val = 1 << RDI_CTRL_START_CMD; and again, please apply BIT() as thorougly as possible in your submission. > + writel(val, csid->base + CSID_RDI_CTRL(rdi)); > +} > + > +static void __csid_configure_top(struct csid_device *csid) > +{ > + u32 val; > + > + /* csid lite doesn't need to configure top register */ > + if (csid->res->is_lite) > + return; > + > + /* CSID top is a new function in Titan780. > + * CSID can connect to VFE & SFE(Sensor Front End). > + * This connection is controlled by CSID top. > + * Only enable VFE path in current driver. > + */ > + val = OUTPUT_IFE_EN | INTERNAL_CSID; > + writel(val, csid->camss->csid_top_base + CSID_TOP_IO_PATH_CFG0(csid->id)); > +} > + > +static void __csid_configure_rdi_stream(struct csid_device *csid, u8 enable, u8 vc) > +{ > + u32 val; > + u8 lane_cnt = csid->phy.lane_cnt; > + /* Source pads matching RDI channels on hardware. Pad 1 -> RDI0, Pad 2 -> RDI1, etc. */ > + struct v4l2_mbus_framefmt *input_format = &csid->fmt[MSM_CSID_PAD_FIRST_SRC + vc]; > + const struct csid_format_info *format = csid_get_fmt_entry(csid->res->formats->formats, > + csid->res->formats->nformats, > + input_format->code); > + > + if (!lane_cnt) > + lane_cnt = 4; > + > + /* > + * DT_ID is a two bit bitfield that is concatenated with > + * the four least significant bits of the five bit VC > + * bitfield to generate an internal CID value. > + * > + * CSID_RDI_CFG0(vc) > + * DT_ID : 28:27 > + * VC : 26:22 > + * DT : 21:16 > + * > + * CID : VC 3:0 << 2 | DT_ID 1:0 > + */ > + u8 dt_id = vc & 0x03; > + > + val = 1 << RDI_CFG0_TIMESTAMP_EN; > + val |= 1 << RDI_CFG0_TIMESTAMP_STB_SEL; > + /* note: for non-RDI path, this should be format->decode_format */ > + val |= DECODE_FORMAT_PAYLOAD_ONLY << RDI_CFG0_DECODE_FORMAT; > + val |= vc << RDI_CFG0_VC; > + val |= format->data_type << RDI_CFG0_DT; > + val |= dt_id << RDI_CFG0_DT_ID; > + > + writel(val, csid->base + CSID_RDI_CFG0(vc)); > + > + val = 1 << RDI_CFG1_PACKING_FORMAT; > + val |= 1 << RDI_CFG1_PIX_STORE; > + val |= 1 << RDI_CFG1_DROP_H_EN; > + val |= 1 << RDI_CFG1_DROP_V_EN; > + val |= 1 << RDI_CFG1_CROP_H_EN; > + val |= 1 << RDI_CFG1_CROP_V_EN; > + > + writel(val, csid->base + CSID_RDI_CFG1(vc)); > + > + val = 0; > + writel(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PERIOD(vc)); > + > + val = 1; > + writel(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PATTERN(vc)); > + > + val = 0; > + writel(val, csid->base + CSID_RDI_CTRL(vc)); > + > + val = readl(csid->base + CSID_RDI_CFG0(vc)); > + > + if (enable) > + val |= 1 << RDI_CFG0_EN; > + writel(val, csid->base + CSID_RDI_CFG0(vc)); > +} > + > +static void csid_configure_stream(struct csid_device *csid, u8 enable) > +{ > + u8 i; > + > + /* Loop through all enabled VCs and configure stream for each */ > + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > + if (csid->phy.en_vc & BIT(i)) { > + __csid_configure_top(csid); > + __csid_configure_rdi_stream(csid, enable, i); > + __csid_configure_rx(csid, &csid->phy, i); > + __csid_ctrl_rdi(csid, enable, i); > + } > +} > + > +/* > + * csid_isr - CSID module interrupt service routine > + * @irq: Interrupt line > + * @dev: CSID device > + * > + * Return IRQ_HANDLED on success > + */ > +static irqreturn_t csid_isr(int irq, void *dev) > +{ > + struct csid_device *csid = dev; > + u32 val, buf_done_val; > + u8 reset_done; > + int i; > + > + val = readl(csid->base + CSID_TOP_IRQ_STATUS); > + writel(val, csid->base + CSID_TOP_IRQ_CLEAR); > + reset_done = val & BIT(TOP_IRQ_STATUS_RESET_DONE); > + > + val = readl(csid->base + CSID_CSI2_RX_IRQ_STATUS); > + writel(val, csid->base + CSID_CSI2_RX_IRQ_CLEAR); > + > + buf_done_val = readl(csid->base + CSID_BUF_DONE_IRQ_STATUS); > + writel(buf_done_val, csid->base + CSID_BUF_DONE_IRQ_CLEAR); > + > + /* Read and clear IRQ status for each enabled RDI channel */ > + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > + if (csid->phy.en_vc & BIT(i)) { > + val = readl(csid->base + CSID_CSI2_RDIN_IRQ_STATUS(i)); > + writel(val, csid->base + CSID_CSI2_RDIN_IRQ_CLEAR(i)); > + > + if (buf_done_val & BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i)) { > + /* For Titan 780, Buf Done IRQ® has been moved to CSID from VFE. > + * Once CSID received Buf Done, need notify this event to VFE. > + * Trigger VFE to handle Buf Done process. > + */ > + camss_buf_done(csid->camss, csid->id, i); > + } > + } > + > + val = 1 << IRQ_CMD_CLEAR; > + writel(val, csid->base + CSID_IRQ_CMD); > + > + if (reset_done) > + complete(&csid->reset_complete); > + > + return IRQ_HANDLED; > +} > + > +/* > + * csid_reset - Trigger reset on CSID module and wait to complete > + * @csid: CSID device > + * > + * Return 0 on success or a negative error code otherwise > + */ > +static int csid_reset(struct csid_device *csid) > +{ > + unsigned long time; > + u32 val; > + int i; > + > + reinit_completion(&csid->reset_complete); > + > + writel(1, csid->base + CSID_TOP_IRQ_CLEAR); > + writel(1, csid->base + CSID_IRQ_CMD); > + writel(1, csid->base + CSID_TOP_IRQ_MASK); > + > + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > + if (csid->phy.en_vc & BIT(i)) { > + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), > + csid->base + CSID_BUF_DONE_IRQ_CLEAR); > + writel(0x1 << IRQ_CMD_CLEAR, csid->base + CSID_IRQ_CMD); > + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), > + csid->base + CSID_BUF_DONE_IRQ_MASK); > + } > + > + /* preserve registers */ > + val = (0x1 << RST_LOCATION) | (0x1 << RST_MODE); > + writel(val, csid->base + CSID_RST_CFG); > + > + val = (0x1 << SELECT_HW_RST) | (0x1 << SELECT_IRQ_RST); > + writel(val, csid->base + CSID_RST_CMD); > + > + time = wait_for_completion_timeout(&csid->reset_complete, > + msecs_to_jiffies(CSID_RESET_TIMEOUT_MS)); > + if (!time) { > + dev_err(csid->camss->dev, "CSID reset timeout\n"); > + return -EIO; > + } > + > + return 0; > +} > + > +static void csid_subdev_reg_update(struct csid_device *csid, int port_id, bool is_clear) > +{ > + if (is_clear) { > + csid->reg_update &= ~REG_UPDATE_RDI(csid, port_id); > + } else { > + csid->reg_update |= REG_UPDATE_RDI(csid, port_id); > + writel(csid->reg_update, csid->base + CSID_REG_UPDATE_CMD); > + } > +} Right so this function should 1. Write the register 2. Wait on a completion See camss-vfe-480.c::vfe_isr_reg_update() 3. Have that completion fire in the CSID ISR 4. Or timeout 5. Returning either 0 for success or -ETIMEDOUT to the calling function so that we can be sure the RUP interrupt has fired and completed - or we have appropriately timed out and captured the failure. Also - in camss-vfe-480.c the ISR clears the RUP which one assumes is still the required logical flow with the RUP now residing in CSID. > + > +static void csid_subdev_init(struct csid_device *csid) > +{ > + /* nop */ > +} > + > +const struct csid_hw_ops csid_ops_gen3 = { > + /* No testgen pattern hw in csid gen3 HW */ > + .configure_testgen_pattern = NULL, > + .configure_stream = csid_configure_stream, > + .hw_version = csid_hw_version, > + .isr = csid_isr, > + .reset = csid_reset, > + .src_pad_code = csid_src_pad_code, > + .subdev_init = csid_subdev_init, > + .reg_update = csid_subdev_reg_update, > +}; > diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.h b/drivers/media/platform/qcom/camss/camss-csid-gen3.h > new file mode 100644 > index 000000000000..43aa0d8d89b9 > --- /dev/null > +++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.h > @@ -0,0 +1,26 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * camss-csid-gen3.h > + * > + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module Generation 3 > + * > + * Copyright (c) 2024 Qualcomm Technologies, Inc. > + */ > +#ifndef QC_MSM_CAMSS_CSID_GEN3_H > +#define QC_MSM_CAMSS_CSID_GEN3_H > + > +#define DECODE_FORMAT_UNCOMPRESSED_8_BIT 0x1 > +#define DECODE_FORMAT_UNCOMPRESSED_10_BIT 0x2 > +#define DECODE_FORMAT_UNCOMPRESSED_12_BIT 0x3 > +#define DECODE_FORMAT_UNCOMPRESSED_14_BIT 0x4 > +#define DECODE_FORMAT_UNCOMPRESSED_16_BIT 0x5 > +#define DECODE_FORMAT_UNCOMPRESSED_20_BIT 0x6 > +#define DECODE_FORMAT_UNCOMPRESSED_24_BIT 0x7 > +#define DECODE_FORMAT_PAYLOAD_ONLY 0xf > + > + > +#define PLAIN_FORMAT_PLAIN8 0x0 /* supports DPCM, UNCOMPRESSED_6/8_BIT */ > +#define PLAIN_FORMAT_PLAIN16 0x1 /* supports DPCM, UNCOMPRESSED_10/16_BIT */ > +#define PLAIN_FORMAT_PLAIN32 0x2 /* supports UNCOMPRESSED_20_BIT */ > + > +#endif /* QC_MSM_CAMSS_CSID_GEN3_H */ > diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c > index 5806df7e7a7c..8ce08929d91f 100644 > --- a/drivers/media/platform/qcom/camss/camss-csid.c > +++ b/drivers/media/platform/qcom/camss/camss-csid.c > @@ -838,7 +838,7 @@ static void csid_try_format(struct csid_device *csid, > break; > > case MSM_CSID_PAD_SRC: > - if (csid->testgen_mode->cur.val == 0) { > + if (!csid->testgen_mode || csid->testgen_mode->cur.val == 0) { See my comments on adding new guards to core functionality. Is this sm8550 specific or generic ? > /* Test generator is disabled, */ > /* keep pad formats in sync */ > u32 code = fmt->code; > @@ -1042,6 +1042,7 @@ static int csid_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) > static int csid_set_test_pattern(struct csid_device *csid, s32 value) > { > struct csid_testgen_config *tg = &csid->testgen; > + const struct csid_hw_ops *hw_ops = csid->res->hw_ops; > > /* If CSID is linked to CSIPHY, do not allow to enable test generator */ > if (value && media_pad_remote_pad_first(&csid->pads[MSM_CSID_PAD_SINK])) > @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct csid_device *csid, s32 value) > > tg->enabled = !!value; > > - return csid->res->hw_ops->configure_testgen_pattern(csid, value); > + if (hw_ops->configure_testgen_pattern) > + return -EOPNOTSUPP; > + else > + return hw_ops->configure_testgen_pattern(csid, value); If you just add a dummy configure_testgen_pattern we can get rid of this branching stuff. > } > > /* > @@ -1121,6 +1125,19 @@ int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid, > csid->base = devm_platform_ioremap_resource_byname(pdev, res->reg[0]); > if (IS_ERR(csid->base)) > return PTR_ERR(csid->base); > + > + /* CSID "top" is a new function in new version HW, > + * CSID can connect to VFE & SFE(Sensor Front End). > + * this connection is controlled by CSID "top" registers. > + * There is only one CSID "top" region for all CSIDs. > + */ > + if (!csid_is_lite(csid) && res->reg[1] && !camss->csid_top_base) { > + camss->csid_top_base = > + devm_platform_ioremap_resource_byname(pdev, res->reg[1]); That's a complex clause. Let me send you a patch to do it a different way. > + > + if (IS_ERR(camss->csid_top_base)) > + return PTR_ERR(camss->csid_top_base); > + } > } > > /* Interrupt */ > @@ -1267,7 +1284,7 @@ static int csid_link_setup(struct media_entity *entity, > > /* If test generator is enabled */ > /* do not allow a link from CSIPHY to CSID */ > - if (csid->testgen_mode->cur.val != 0) > + if (csid->testgen_mode && csid->testgen_mode->cur.val != 0) OK, so stuff like this isn't really about enabling 8550. If you want to add an additional guard here, it _needs_ to be a standalone patch which fixes a particular issue. I'm not sure if this new guard is necessary - and the right place to tease that out, is in a specific patch for that purpose, not in a new silicon enabling patch. That's a blanket comment for the series. > return -EBUSY; > > sd = media_entity_to_v4l2_subdev(remote->entity); > @@ -1366,15 +1383,20 @@ int msm_csid_register_entity(struct csid_device *csid, > return ret; > } > > - csid->testgen_mode = v4l2_ctrl_new_std_menu_items(&csid->ctrls, > - &csid_ctrl_ops, V4L2_CID_TEST_PATTERN, > - csid->testgen.nmodes, 0, 0, > - csid->testgen.modes); > - > - if (csid->ctrls.error) { > - dev_err(dev, "Failed to init ctrl: %d\n", csid->ctrls.error); > - ret = csid->ctrls.error; > - goto free_ctrl; > + if (csid->res->hw_ops->configure_testgen_pattern) { > + csid->testgen_mode = > + v4l2_ctrl_new_std_menu_items(&csid->ctrls, > + &csid_ctrl_ops, > + V4L2_CID_TEST_PATTERN, > + csid->testgen.nmodes, 0, > + 0, csid->testgen.modes); Here again - what's going on here and how is it 8550/csid-680 specific ? Don't just add new guards or new debug statements unless its under a heading of "add a new check for reason X". The reason for that is we want granular patches in particular we don't want to "backdoor" in fixes into a new SoC which can't be cherry-picked back to a stable kernel. > + > + if (csid->ctrls.error) { > + dev_err(dev, "Failed to init ctrl: %d\n", > + csid->ctrls.error); > + ret = csid->ctrls.error; > + goto free_ctrl; > + } > } > > csid->subdev.ctrl_handler = &csid->ctrls; > diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h > index f52209b96583..2715707dcdb4 100644 > --- a/drivers/media/platform/qcom/camss/camss-csid.h > +++ b/drivers/media/platform/qcom/camss/camss-csid.h > @@ -152,6 +152,14 @@ struct csid_hw_ops { > * @csid: CSID device > */ > void (*subdev_init)(struct csid_device *csid); > + > + /* > + * reg_update - receive message from other sub device > + * @csid: CSID device > + * @port_id: Port id > + * @is_clear: Indicate if it is clearing reg update or setting reg update > + */ > + void (*reg_update)(struct csid_device *csid, int port_id, bool is_clear); > }; > > struct csid_subdev_resources { > @@ -168,6 +176,7 @@ struct csid_device { > struct media_pad pads[MSM_CSID_PADS_NUM]; > void __iomem *base; > u32 irq; > + u32 reg_update; > char irq_name[30]; > struct camss_clock *clock; > int nclocks; > @@ -228,6 +237,7 @@ extern const struct csid_formats csid_formats_gen2; > extern const struct csid_hw_ops csid_ops_4_1; > extern const struct csid_hw_ops csid_ops_4_7; > extern const struct csid_hw_ops csid_ops_gen2; > +extern const struct csid_hw_ops csid_ops_gen3; > > /* > * csid_is_lite - Check if CSID is CSID lite. > diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c > index 1cdd40f49c27..7ee102948dc4 100644 > --- a/drivers/media/platform/qcom/camss/camss.c > +++ b/drivers/media/platform/qcom/camss/camss.c > @@ -1588,6 +1588,84 @@ static const struct camss_subdev_resources csiphy_res_8550[] = { > } > }; > > +static const struct camss_subdev_resources csid_res_8550[] = { > + /* CSID0 */ > + { > + .regulators = { "vdda-phy", "vdda-pll" }, > + .clock = { "csid", "csiphy_rx" }, > + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, > + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, I think you should be setting at least _one_ CAMNOC clock in the CSID. > + .reg = { "csid0", "csid_top" }, > + .interrupt = { "csid0" }, > + .csid = { > + .is_lite = false, > + .parent_dev_ops = &vfe_parent_dev_ops, > + .hw_ops = &csid_ops_gen3, > + .formats = &csid_formats_gen2 > + } > + }, > + /* CSID1 */ > + { > + .regulators = { "vdda-phy", "vdda-pll" }, > + .clock = { "csid", "csiphy_rx" }, > + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, > + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, > + .reg = { "csid1", "csid_top" }, > + .interrupt = { "csid1" }, > + .csid = { > + .is_lite = false, > + .parent_dev_ops = &vfe_parent_dev_ops, > + .hw_ops = &csid_ops_gen3, > + .formats = &csid_formats_gen2 > + } > + }, > + /* CSID2 */ > + { > + .regulators = { "vdda-phy", "vdda-pll" }, > + .clock = { "csid", "csiphy_rx" }, > + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, > + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, > + .reg = { "csid2", "csid_top" }, > + .interrupt = { "csid2" }, > + .csid = { > + .is_lite = false, > + .parent_dev_ops = &vfe_parent_dev_ops, > + .hw_ops = &csid_ops_gen3, > + .formats = &csid_formats_gen2 > + } > + }, > + /* CSID3 */ > + { > + .regulators = { "vdda-phy", "vdda-pll" }, > + .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx" }, > + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, > + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, > + .reg = { "csid_lite0" }, > + .interrupt = { "csid_lite0" }, > + .csid = { > + .is_lite = true, > + .parent_dev_ops = &vfe_parent_dev_ops, > + .hw_ops = &csid_ops_gen3, > + .formats = &csid_formats_gen2 > + } > + }, > + /* CSID4 */ > + { > + .regulators = { "vdda-phy", "vdda-pll" }, > + .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx" }, > + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, > + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, > + .reg = { "csid_lite1" }, > + .interrupt = { "csid_lite1" }, > + .csid = { > + .is_lite = true, > + .parent_dev_ops = &vfe_parent_dev_ops, > + .hw_ops = &csid_ops_gen3, > + .formats = &csid_formats_gen2 > + } > + } > +}; > + > static const struct resources_icc icc_res_sm8550[] = { > { > .name = "ahb", > @@ -1768,6 +1846,17 @@ void camss_pm_domain_off(struct camss *camss, int id) > } > } > > +void camss_buf_done(struct camss *camss, int hw_id, int port_id) > +{ > + struct vfe_device *vfe; > + > + if (hw_id < camss->res->vfe_num) { > + vfe = &(camss->vfe[hw_id]); > + > + vfe->res->hw_ops->vfe_buf_done(vfe, port_id); > + } > +} > + > static int vfe_parent_dev_ops_get(struct camss *camss, int id) > { > int ret = -EINVAL; > @@ -2578,9 +2667,11 @@ static const struct camss_resources sm8550_resources = { > .version = CAMSS_8550, > .pd_name = "top", > .csiphy_res = csiphy_res_8550, > + .csid_res = csid_res_8550, > .icc_res = icc_res_sm8550, > .icc_path_num = ARRAY_SIZE(icc_res_sm8550), > .csiphy_num = ARRAY_SIZE(csiphy_res_8550), > + .csid_num = ARRAY_SIZE(csid_res_8550), > .link_entities = camss_link_entities > }; > > diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h > index 5568ab32d5d7..d6b6558a82b9 100644 > --- a/drivers/media/platform/qcom/camss/camss.h > +++ b/drivers/media/platform/qcom/camss/camss.h > @@ -117,6 +117,7 @@ struct camss { > struct device_link *genpd_link; > struct icc_path *icc_path[ICC_SM8250_COUNT]; > const struct camss_resources *res; > + void __iomem *csid_top_base; > }; > > struct camss_camera_interface { > @@ -155,5 +156,6 @@ void camss_pm_domain_off(struct camss *camss, int id); > int camss_vfe_get(struct camss *camss, int id); > void camss_vfe_put(struct camss *camss, int id); > void camss_delete(struct camss *camss); > +void camss_buf_done(struct camss *camss, int hw_id, int port_id); > > #endif /* QC_MSM_CAMSS_H */
Hi Bryan, >> --- >> drivers/media/platform/qcom/camss/Makefile | 1 + >> .../platform/qcom/camss/camss-csid-gen3.c | 339 ++++++++++++++++++ >> .../platform/qcom/camss/camss-csid-gen3.h | 26 ++ > > > So this "gen2" and "gen3" stuff would make sense if we had a number of > SoCs based on gen2 and gen3 which were controlled from the upper-level > gen2.c and gen3.c. > > What you're submitting here is csid-780 so the file should be named > csid-780. > > When we add 680 or 880 then it makes sense to try to encapsulate a class > of generation into one file - potentially. > > I'd guess that was the intent behind gen2.c. > > TL;DR please name your file csid-xxx.c Sure, I will use csid-780.c >> + >> + writel(val, csid->base + CSID_CSI2_RX_CFG0); >> + >> + val = 1 << CSI2_RX_CFG1_ECC_CORRECTION_EN; >> + if (vc > 3) >> + val |= 1 << CSI2_RX_CFG1_VC_MODE; > > So again these are needless bit-shifts. > > #define CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN BIT(0) > > val = CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN; > You posted same comments in v3 series, I also replied it. https://lore.kernel.org/all/eeaf4f4e-5200-4b13-b38f-3f3385fc2a2b@quicinc.com/ Some of register bits which just need to be configured to 0 or 1, then can use BIT(X), but some register bits need to configure a specific value, e.g., CSID_RDI_CFG0 bits[22:26] need to configure a vc vaule, bits[16:21] need to configure a dt value, then we can't use BIT(x) to handle this. >> + >> +static void csid_subdev_reg_update(struct csid_device *csid, int >> port_id, bool is_clear) >> +{ >> + if (is_clear) { >> + csid->reg_update &= ~REG_UPDATE_RDI(csid, port_id); >> + } else { >> + csid->reg_update |= REG_UPDATE_RDI(csid, port_id); >> + writel(csid->reg_update, csid->base + CSID_REG_UPDATE_CMD); >> + } >> +} > > Right so this function should > > 1. Write the register > 2. Wait on a completion > See camss-vfe-480.c::vfe_isr_reg_update() > 3. Have that completion fire in the CSID ISR > 4. Or timeout > 5. Returning either 0 for success or -ETIMEDOUT > > to the calling function so that we can be sure the RUP interrupt has > fired and completed - or we have appropriately timed out and captured > the failure. > > Also - in camss-vfe-480.c the ISR clears the RUP which one assumes is > still the required logical flow with the RUP now residing in CSID. > Sure, I forget to add this, will add them in next series. >> case MSM_CSID_PAD_SRC: >> - if (csid->testgen_mode->cur.val == 0) { >> + if (!csid->testgen_mode || csid->testgen_mode->cur.val == 0) { > > See my comments on adding new guards to core functionality. > > Is this sm8550 specific or generic ? > It is sm8550 specific, since we don't have testgen mode in sm8550 csid, so need to add some guards, the guards are added for similar reason. >> /* Test generator is disabled, */ >> /* keep pad formats in sync */ >> u32 code = fmt->code; >> @@ -1042,6 +1042,7 @@ static int csid_init_formats(struct v4l2_subdev >> *sd, struct v4l2_subdev_fh *fh) >> static int csid_set_test_pattern(struct csid_device *csid, s32 value) >> { >> struct csid_testgen_config *tg = &csid->testgen; >> + const struct csid_hw_ops *hw_ops = csid->res->hw_ops; >> /* If CSID is linked to CSIPHY, do not allow to enable test >> generator */ >> if (value && media_pad_remote_pad_first(&csid- >> >pads[MSM_CSID_PAD_SINK])) >> @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct >> csid_device *csid, s32 value) >> tg->enabled = !!value; >> - return csid->res->hw_ops->configure_testgen_pattern(csid, value); >> + if (hw_ops->configure_testgen_pattern) >> + return -EOPNOTSUPP; >> + else >> + return hw_ops->configure_testgen_pattern(csid, value); > > If you just add a dummy configure_testgen_pattern we can get rid of this > branching stuff. > Do you mean add dummy function in csid-780/gen3.c? How about the other ops in vfe_ops_780, add dummy function or use NULL? We need to guards if we set it as NULL. static int csid_configure_testgen_pattern(struct csid_device *csid, s32 val) { return 0; } >> } >> /* >> @@ -1121,6 +1125,19 @@ int msm_csid_subdev_init(struct camss *camss, >> struct csid_device *csid, >> csid->base = devm_platform_ioremap_resource_byname(pdev, >> res->reg[0]); >> if (IS_ERR(csid->base)) >> return PTR_ERR(csid->base); >> + >> + /* CSID "top" is a new function in new version HW, >> + * CSID can connect to VFE & SFE(Sensor Front End). >> + * this connection is controlled by CSID "top" registers. >> + * There is only one CSID "top" region for all CSIDs. >> + */ >> + if (!csid_is_lite(csid) && res->reg[1] && !camss- >> >csid_top_base) { >> + camss->csid_top_base = >> + devm_platform_ioremap_resource_byname(pdev, res- >> >reg[1]); > > That's a complex clause. > > Let me send you a patch to do it a different way. > I was also thinking to addd it in camss level, then I thought it is in csid block, so I moved it to csid, but it is also fine to add it in camss. Can I add your patch into this series? Just like the csiphy patches. Thanks, Depeng
On 15/08/2024 16:14, Depeng Shao wrote: > Hi Bryan, > > >>> --- >>> drivers/media/platform/qcom/camss/Makefile | 1 + >>> .../platform/qcom/camss/camss-csid-gen3.c | 339 ++++++++++++++++++ >>> .../platform/qcom/camss/camss-csid-gen3.h | 26 ++ >> >> >> So this "gen2" and "gen3" stuff would make sense if we had a number of >> SoCs based on gen2 and gen3 which were controlled from the upper-level >> gen2.c and gen3.c. >> >> What you're submitting here is csid-780 so the file should be named >> csid-780. >> >> When we add 680 or 880 then it makes sense to try to encapsulate a >> class of generation into one file - potentially. >> >> I'd guess that was the intent behind gen2.c. >> >> TL;DR please name your file csid-xxx.c > > Sure, I will use csid-780.c > >>> + >>> + writel(val, csid->base + CSID_CSI2_RX_CFG0); >>> + >>> + val = 1 << CSI2_RX_CFG1_ECC_CORRECTION_EN; >>> + if (vc > 3) >>> + val |= 1 << CSI2_RX_CFG1_VC_MODE; >> >> So again these are needless bit-shifts. >> >> #define CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN BIT(0) >> >> val = CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN; >> > > You posted same comments in v3 series, I also replied it. > https://lore.kernel.org/all/eeaf4f4e-5200-4b13-b38f-3f3385fc2a2b@quicinc.com/ > > Some of register bits which just need to be configured to 0 or 1, then > can use BIT(X), but some register bits need to configure a specific > value, e.g., CSID_RDI_CFG0 bits[22:26] need to configure a vc vaule, > bits[16:21] need to configure a dt value, then we can't use BIT(x) to > handle this. Yes please use macros() to bury any _necessary_ bit shifts to populate a _bit_field_ away but as an example CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN is not a bit-field. > > >>> case MSM_CSID_PAD_SRC: >>> - if (csid->testgen_mode->cur.val == 0) { >>> + if (!csid->testgen_mode || csid->testgen_mode->cur.val == 0) { >> >> See my comments on adding new guards to core functionality. >> >> Is this sm8550 specific or generic ? >> > > It is sm8550 specific, since we don't have testgen mode in sm8550 csid, > so need to add some guards, the guards are added for similar reason. Hmm, I see in my tree I just assigned testgen_mode to some dummy data. You're right, retain this, when we enable testgen as a standalone entity outside of CSID we can address this again. > >>> /* Test generator is disabled, */ >>> /* keep pad formats in sync */ >>> u32 code = fmt->code; >>> @@ -1042,6 +1042,7 @@ static int csid_init_formats(struct v4l2_subdev >>> *sd, struct v4l2_subdev_fh *fh) >>> static int csid_set_test_pattern(struct csid_device *csid, s32 value) >>> { >>> struct csid_testgen_config *tg = &csid->testgen; >>> + const struct csid_hw_ops *hw_ops = csid->res->hw_ops; >>> /* If CSID is linked to CSIPHY, do not allow to enable test >>> generator */ >>> if (value && media_pad_remote_pad_first(&csid- >>> >pads[MSM_CSID_PAD_SINK])) >>> @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct >>> csid_device *csid, s32 value) >>> tg->enabled = !!value; >>> - return csid->res->hw_ops->configure_testgen_pattern(csid, value); >>> + if (hw_ops->configure_testgen_pattern) >>> + return -EOPNOTSUPP; >>> + else >>> + return hw_ops->configure_testgen_pattern(csid, value); >> >> If you just add a dummy configure_testgen_pattern we can get rid of >> this branching stuff. >> > > Do you mean add dummy function in csid-780/gen3.c? How about the other > ops in vfe_ops_780, add dummy function or use NULL? We need to guards if > we set it as NULL. See above, you're right what you have is fine. > > static int csid_configure_testgen_pattern(struct csid_device *csid, s32 > val) > { > return 0; > } > >>> } >>> /* >>> @@ -1121,6 +1125,19 @@ int msm_csid_subdev_init(struct camss *camss, >>> struct csid_device *csid, >>> csid->base = devm_platform_ioremap_resource_byname(pdev, >>> res->reg[0]); >>> if (IS_ERR(csid->base)) >>> return PTR_ERR(csid->base); >>> + >>> + /* CSID "top" is a new function in new version HW, >>> + * CSID can connect to VFE & SFE(Sensor Front End). >>> + * this connection is controlled by CSID "top" registers. >>> + * There is only one CSID "top" region for all CSIDs. >>> + */ >>> + if (!csid_is_lite(csid) && res->reg[1] && !camss- >>> >csid_top_base) { >>> + camss->csid_top_base = >>> + devm_platform_ioremap_resource_byname(pdev, res- >>> >reg[1]); >> >> That's a complex clause. >> >> Let me send you a patch to do it a different way. >> > > I was also thinking to addd it in camss level, then I thought it is in > csid block, so I moved it to csid, but it is also fine to add it in > camss. Can I add your patch into this series? Just like the csiphy patches. static const struct resources_wrapper csid_wrapper_res_sm8550 = { .reg = "csid_wrapper", }; Yes go ahead, all you should need to do then is add "&csid_wrapper_res_sm8550" to your resources. static const struct camss_resources sm8550_resources = { .version = CAMSS_SM8550, .pd_name = "top", .csiphy_res = csiphy_res_sm8550, .csid_res = csid_res_sm8550, .ispif_res = NULL, .vfe_res = vfe_res_sm8550, .csid_wrapper_res = &csid_wrapper_res_sm8550, ... }; --- bod
On 12/08/2024 15:41, Depeng Shao wrote: > + > +static void csid_configure_stream(struct csid_device *csid, u8 enable) > +{ > + u8 i; > + > + /* Loop through all enabled VCs and configure stream for each */ > + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > + if (csid->phy.en_vc & BIT(i)) { > + __csid_configure_top(csid); > + __csid_configure_rdi_stream(csid, enable, i); > + __csid_configure_rx(csid, &csid->phy, i); > + __csid_ctrl_rdi(csid, enable, i); > + } > +} Just noticed this too. You're configuring the CSID routing here for each enabled VC but, you should only do that once @ the top level -> __csid_configure_top(csid); /* Loop through all enabled VCs and configure stream for each */ for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) if (csid->phy.en_vc & BIT(i)) { __csid_configure_rdi_stream(csid, enable, i); __csid_configure_rx(csid, &csid->phy, i); __csid_ctrl_rdi(csid, enable, i); } --- bod
Hi Bryan, On 8/16/2024 7:34 PM, Bryan O'Donoghue wrote: > > Just noticed this too. > > You're configuring the CSID routing here for each enabled VC but, you > should only do that once @ the top level > > -> > > > __csid_configure_top(csid); > > /* Loop through all enabled VCs and configure stream for each */ > for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > if (csid->phy.en_vc & BIT(i)) { > __csid_configure_rdi_stream(csid, enable, i); > __csid_configure_rx(csid, &csid->phy, i); > __csid_ctrl_rdi(csid, enable, i); > } > Yes, you are right, will move configure_top out of the for loop. Thanks, Depeng
On 12/08/2024 15:41, Depeng Shao wrote: > +#define CSID_RDI_CFG1(rdi) (0x510 + 0x100 * (rdi)) > +#define RDI_CFG1_DROP_H_EN 5 > +#define RDI_CFG1_DROP_V_EN 6 > +#define RDI_CFG1_CROP_H_EN 7 > +#define RDI_CFG1_CROP_V_EN 8 > +#define RDI_CFG1_PIX_STORE 10 Hmm - is bit 10 valid ? I'm looking at a register set derived from 8550 and don't see it > +#define RDI_CFG1_PACKING_FORMAT 15 Bit 15 selects either BIT(15) = 0 PACKING_FORMAT_PLAIN or BIT(15) = 1 PACKING_FORMAT_MIPI Please give this bit a more descriptive name => #define RDI_CFG1_PACKING_FORMAT_MIPI 15 --- bod
On 12/08/2024 15:41, Depeng Shao wrote: > + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > + if (csid->phy.en_vc & BIT(i)) { > + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), > + csid->base + CSID_BUF_DONE_IRQ_CLEAR); > + writel(0x1 << IRQ_CMD_CLEAR, csid->base + CSID_IRQ_CMD); IRQ_CMD_CLEAR is for the CSID block not per RDI. I think you need to move the write outside of this loop too. > + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), > + csid->base + CSID_BUF_DONE_IRQ_MASK); > + } --- bod
On 12/08/2024 15:41, Depeng Shao wrote: > + writel(1, csid->base + CSID_TOP_IRQ_CLEAR); > + writel(1, csid->base + CSID_IRQ_CMD); CSID_IRQ_CMD bit(0) = CMD_CLEAR > + writel(1, csid->base + CSID_TOP_IRQ_MASK); > + > + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) > + if (csid->phy.en_vc & BIT(i)) { > + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), > + csid->base + CSID_BUF_DONE_IRQ_CLEAR); > + writel(0x1 << IRQ_CMD_CLEAR, csid->base + CSID_IRQ_CMD); CSID_IRQ_CMD bit(0) = CMD_CLEAR and again here. > + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), > + csid->base + CSID_BUF_DONE_IRQ_MASK); > + } re: previous comments 1. Please define bits so that'd be #define CSID_IRQ_CMD_CLEAR BIT(0) writel(CSID_IRQ_CMD_CLEAR, csid->base + CSID_IRQ_CMD); There's no value in circumscribing the meaning of bitfields in upstream code, we just make our own lives easier by having self-documenting code. TL;DR please name your bits - a blanket statement for the series. 2. And as mentioned above, you don't need to execute that clear n times in a loop. Just do it once at the top of the routine. --- bod
Hi Bryan, On 8/16/2024 10:45 PM, Bryan O'Donoghue wrote: > On 12/08/2024 15:41, Depeng Shao wrote: >> + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) >> + if (csid->phy.en_vc & BIT(i)) { >> + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), >> + csid->base + CSID_BUF_DONE_IRQ_CLEAR); >> + writel(0x1 << IRQ_CMD_CLEAR, csid->base + CSID_IRQ_CMD); > > IRQ_CMD_CLEAR is for the CSID block not per RDI. > Sure, I will move IRQ_CMD_CLEAR outside of this loop. > I think you need to move the write outside of this loop too. > >> + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), >> + csid->base + CSID_BUF_DONE_IRQ_MASK); >> + } > Yes, this also can be moved to outside of the loop. I will update them. Thanks, Depeng
Hi Bryan, On 8/16/2024 10:21 PM, Bryan O'Donoghue wrote: > On 12/08/2024 15:41, Depeng Shao wrote: >> +#define CSID_RDI_CFG1(rdi) (0x510 + 0x100 * (rdi)) >> +#define RDI_CFG1_DROP_H_EN 5 >> +#define RDI_CFG1_DROP_V_EN 6 >> +#define RDI_CFG1_CROP_H_EN 7 >> +#define RDI_CFG1_CROP_V_EN 8 >> +#define RDI_CFG1_PIX_STORE 10 > > Hmm - is bit 10 valid ? I'm looking at a register set derived from 8550 > and don't see it > The bit10 is valid in sm8550, but it isn't there in sm8750. >> +#define RDI_CFG1_PACKING_FORMAT 15 > > Bit 15 selects either BIT(15) = 0 PACKING_FORMAT_PLAIN or BIT(15) = 1 > PACKING_FORMAT_MIPI > > Please give this bit a more descriptive name => > > #define RDI_CFG1_PACKING_FORMAT_MIPI 15 > Sure. I will update it. Thanks, Depeng
On 8/12/24 17:41, Depeng Shao wrote: > The CSID in sm8550 is gen3, it has new register offset and new > functionality. The buf done irq,register update and reset are > moved to CSID gen3. > > The sm8550 also has a new block is named as CSID top, CSID can > connect to VFE or SFE(Sensor Front End), the connection is controlled > by CSID top. > > Co-developed-by: Yongsheng Li <quic_yon@quicinc.com> > Signed-off-by: Yongsheng Li <quic_yon@quicinc.com> > Signed-off-by: Depeng Shao <quic_depengs@quicinc.com> > --- > drivers/media/platform/qcom/camss/Makefile | 1 + > .../platform/qcom/camss/camss-csid-gen3.c | 339 ++++++++++++++++++ > .../platform/qcom/camss/camss-csid-gen3.h | 26 ++ > .../media/platform/qcom/camss/camss-csid.c | 46 ++- > .../media/platform/qcom/camss/camss-csid.h | 10 + > drivers/media/platform/qcom/camss/camss.c | 91 +++++ > drivers/media/platform/qcom/camss/camss.h | 2 + > 7 files changed, 503 insertions(+), 12 deletions(-) > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-gen3.c > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-gen3.h > > diff --git a/drivers/media/platform/qcom/camss/Makefile b/drivers/media/platform/qcom/camss/Makefile > index e636968a1126..c336e4c1a399 100644 > --- a/drivers/media/platform/qcom/camss/Makefile > +++ b/drivers/media/platform/qcom/camss/Makefile > @@ -7,6 +7,7 @@ qcom-camss-objs += \ > camss-csid-4-1.o \ > camss-csid-4-7.o \ > camss-csid-gen2.o \ > + camss-csid-gen3.o \ > camss-csiphy-2ph-1-0.o \ > camss-csiphy-3ph-1-0.o \ > camss-csiphy.o \ > diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.c b/drivers/media/platform/qcom/camss/camss-csid-gen3.c > new file mode 100644 > index 000000000000..d96bc126f0a9 > --- /dev/null > +++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.c > @@ -0,0 +1,339 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * camss-csid-gen3.c > + * > + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module > + * > + * Copyright (c) 2024 Qualcomm Technologies, Inc. > + */ > +#include <linux/completion.h> > +#include <linux/delay.h> > +#include <linux/interrupt.h> > +#include <linux/io.h> > +#include <linux/kernel.h> > +#include <linux/of.h> > + > +#include "camss.h" > +#include "camss-csid.h" > +#include "camss-csid-gen3.h" > + > +#define CSID_TOP_IO_PATH_CFG0(csid) (0x4 * (csid)) > +#define OUTPUT_IFE_EN 0x100 > +#define INTERNAL_CSID 1 > + > +#define CSID_RST_CFG 0xC > +#define RST_MODE 0 > +#define RST_LOCATION 4 > + > +#define CSID_RST_CMD 0x10 > +#define SELECT_HW_RST 0 > +#define SELECT_SW_RST 1 > +#define SELECT_IRQ_RST 2 > + > +#define CSID_CSI2_RX_IRQ_STATUS 0x9C > +#define CSID_CSI2_RX_IRQ_MASK 0xA0 > +#define CSID_CSI2_RX_IRQ_CLEAR 0xA4 > +#define CSID_CSI2_RX_IRQ_SET 0xA8 > + > +#define CSID_CSI2_RDIN_IRQ_STATUS(rdi) (0xEC + 0x10 * (rdi)) > + > +#define CSID_CSI2_RDIN_IRQ_CLEAR(rdi) (0xF4 + 0x10 * (rdi)) > +#define CSID_CSI2_RDIN_IRQ_SET(rdi) (0xF8 + 0x10 * (rdi)) > + > +#define CSID_TOP_IRQ_STATUS 0x7C The list of macros shall be sorted by register offset value. > +#define TOP_IRQ_STATUS_RESET_DONE 0 > + > +#define CSID_TOP_IRQ_MASK 0x80 > +#define CSID_TOP_IRQ_CLEAR 0x84 > +#define CSID_TOP_IRQ_SET 0x88 > + > +#define CSID_IRQ_CMD 0x14 > +#define IRQ_CMD_CLEAR 0 > +#define IRQ_CMD_SET 4 > + > +#define CSID_REG_UPDATE_CMD 0x18 > + > +#define CSID_BUF_DONE_IRQ_STATUS 0x8C > +#define BUF_DONE_IRQ_STATUS_RDI_OFFSET (csid_is_lite(csid) ? 1 : 14) > +#define CSID_BUF_DONE_IRQ_MASK 0x90 > +#define CSID_BUF_DONE_IRQ_CLEAR 0x94 > +#define CSID_BUF_DONE_IRQ_SET 0x98 > + > +#define CSI2_RX_CFG0_PHY_SEL_BASE_IDX 1 > + > +#define CSID_CSI2_RX_CFG0 0x200 > +#define CSI2_RX_CFG0_NUM_ACTIVE_LANES 0 > +#define CSI2_RX_CFG0_DL0_INPUT_SEL 4 > +#define CSI2_RX_CFG0_PHY_NUM_SEL 20 > + > +#define CSID_CSI2_RX_CFG1 0x204 > +#define CSI2_RX_CFG1_ECC_CORRECTION_EN 0 > +#define CSI2_RX_CFG1_VC_MODE 2 > + > +#define CSID_RDI_CFG0(rdi) (0x500 + 0x100 * (rdi)) > +#define RDI_CFG0_TIMESTAMP_EN 6 > +#define RDI_CFG0_TIMESTAMP_STB_SEL 8 > +#define RDI_CFG0_DECODE_FORMAT 12 > +#define RDI_CFG0_DT 16 > +#define RDI_CFG0_VC 22 > +#define RDI_CFG0_DT_ID 27 > +#define RDI_CFG0_EN 31 > + > +#define CSID_RDI_CFG1(rdi) (0x510 + 0x100 * (rdi)) > +#define RDI_CFG1_DROP_H_EN 5 > +#define RDI_CFG1_DROP_V_EN 6 > +#define RDI_CFG1_CROP_H_EN 7 > +#define RDI_CFG1_CROP_V_EN 8 > +#define RDI_CFG1_PIX_STORE 10 > +#define RDI_CFG1_PACKING_FORMAT 15 > + > +#define CSID_RDI_CTRL(rdi) (0x504 + 0x100 * (rdi)) Sorted by register offset please. > +#define RDI_CTRL_START_CMD 0 > + > +#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi) (0x548 + 0x100 * (rdi)) > +#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi) (0x54C + 0x100 * (rdi)) > + > +static inline int reg_update_rdi(struct csid_device *csid, int n) > +{ > + return BIT(n + 4) + BIT(20 + n); Taking as unshifted bit BIT(4) is RUP and BIT(20) is AUP, add corresponding macros for them, then return (... | ...) << n; > +} > +#define REG_UPDATE_RDI reg_update_rdi > + -- Best wishes, Vladimir
Hi Depeng. On 8/12/24 17:41, Depeng Shao wrote: > The CSID in sm8550 is gen3, it has new register offset and new > functionality. The buf done irq,register update and reset are > moved to CSID gen3. > > The sm8550 also has a new block is named as CSID top, CSID can > connect to VFE or SFE(Sensor Front End), the connection is controlled > by CSID top. > > Co-developed-by: Yongsheng Li <quic_yon@quicinc.com> > Signed-off-by: Yongsheng Li <quic_yon@quicinc.com> > Signed-off-by: Depeng Shao <quic_depengs@quicinc.com> <snip> > @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct csid_device *csid, s32 value) > > tg->enabled = !!value; > > - return csid->res->hw_ops->configure_testgen_pattern(csid, value); > + if (hw_ops->configure_testgen_pattern) > + return -EOPNOTSUPP; > + else > + return hw_ops->configure_testgen_pattern(csid, value); > } > > /* Here you accedentally break the TPG on all platforms and introduce a NULL pointer dereference, please fix it. Any generic/non-sm8550 support related changes like the part of this one shall be split into a stand-alone generic change aside of the added SM8550 platform support, it will simplify patch reviews and hunting bugs like the one above. -- Best wishes, Vladimir
Hi Vladimir, On 9/30/2024 5:23 PM, Vladimir Zapolskiy wrote: >> @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct >> csid_device *csid, s32 value) >> tg->enabled = !!value; >> - return csid->res->hw_ops->configure_testgen_pattern(csid, value); >> + if (hw_ops->configure_testgen_pattern) >> + return -EOPNOTSUPP; >> + else >> + return hw_ops->configure_testgen_pattern(csid, value); >> } >> /* > > Here you accedentally break the TPG on all platforms and introduce a NULL > pointer dereference, please fix it. > > Any generic/non-sm8550 support related changes like the part of this > one shall be split into a stand-alone generic change aside of the added > SM8550 platform support, it will simplify patch reviews and hunting bugs > like the one above. > Thanks for catching this. This is indeed a bug which is introduced by this patch. And I will follow your suggestion to use a stand-alone generic change for the TPG part. Thanks, Depeng
diff --git a/drivers/media/platform/qcom/camss/Makefile b/drivers/media/platform/qcom/camss/Makefile index e636968a1126..c336e4c1a399 100644 --- a/drivers/media/platform/qcom/camss/Makefile +++ b/drivers/media/platform/qcom/camss/Makefile @@ -7,6 +7,7 @@ qcom-camss-objs += \ camss-csid-4-1.o \ camss-csid-4-7.o \ camss-csid-gen2.o \ + camss-csid-gen3.o \ camss-csiphy-2ph-1-0.o \ camss-csiphy-3ph-1-0.o \ camss-csiphy.o \ diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.c b/drivers/media/platform/qcom/camss/camss-csid-gen3.c new file mode 100644 index 000000000000..d96bc126f0a9 --- /dev/null +++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.c @@ -0,0 +1,339 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * camss-csid-gen3.c + * + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module + * + * Copyright (c) 2024 Qualcomm Technologies, Inc. + */ +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/of.h> + +#include "camss.h" +#include "camss-csid.h" +#include "camss-csid-gen3.h" + +#define CSID_TOP_IO_PATH_CFG0(csid) (0x4 * (csid)) +#define OUTPUT_IFE_EN 0x100 +#define INTERNAL_CSID 1 + +#define CSID_RST_CFG 0xC +#define RST_MODE 0 +#define RST_LOCATION 4 + +#define CSID_RST_CMD 0x10 +#define SELECT_HW_RST 0 +#define SELECT_SW_RST 1 +#define SELECT_IRQ_RST 2 + +#define CSID_CSI2_RX_IRQ_STATUS 0x9C +#define CSID_CSI2_RX_IRQ_MASK 0xA0 +#define CSID_CSI2_RX_IRQ_CLEAR 0xA4 +#define CSID_CSI2_RX_IRQ_SET 0xA8 + +#define CSID_CSI2_RDIN_IRQ_STATUS(rdi) (0xEC + 0x10 * (rdi)) + +#define CSID_CSI2_RDIN_IRQ_CLEAR(rdi) (0xF4 + 0x10 * (rdi)) +#define CSID_CSI2_RDIN_IRQ_SET(rdi) (0xF8 + 0x10 * (rdi)) + +#define CSID_TOP_IRQ_STATUS 0x7C +#define TOP_IRQ_STATUS_RESET_DONE 0 + +#define CSID_TOP_IRQ_MASK 0x80 +#define CSID_TOP_IRQ_CLEAR 0x84 +#define CSID_TOP_IRQ_SET 0x88 + +#define CSID_IRQ_CMD 0x14 +#define IRQ_CMD_CLEAR 0 +#define IRQ_CMD_SET 4 + +#define CSID_REG_UPDATE_CMD 0x18 + +#define CSID_BUF_DONE_IRQ_STATUS 0x8C +#define BUF_DONE_IRQ_STATUS_RDI_OFFSET (csid_is_lite(csid) ? 1 : 14) +#define CSID_BUF_DONE_IRQ_MASK 0x90 +#define CSID_BUF_DONE_IRQ_CLEAR 0x94 +#define CSID_BUF_DONE_IRQ_SET 0x98 + +#define CSI2_RX_CFG0_PHY_SEL_BASE_IDX 1 + +#define CSID_CSI2_RX_CFG0 0x200 +#define CSI2_RX_CFG0_NUM_ACTIVE_LANES 0 +#define CSI2_RX_CFG0_DL0_INPUT_SEL 4 +#define CSI2_RX_CFG0_PHY_NUM_SEL 20 + +#define CSID_CSI2_RX_CFG1 0x204 +#define CSI2_RX_CFG1_ECC_CORRECTION_EN 0 +#define CSI2_RX_CFG1_VC_MODE 2 + +#define CSID_RDI_CFG0(rdi) (0x500 + 0x100 * (rdi)) +#define RDI_CFG0_TIMESTAMP_EN 6 +#define RDI_CFG0_TIMESTAMP_STB_SEL 8 +#define RDI_CFG0_DECODE_FORMAT 12 +#define RDI_CFG0_DT 16 +#define RDI_CFG0_VC 22 +#define RDI_CFG0_DT_ID 27 +#define RDI_CFG0_EN 31 + +#define CSID_RDI_CFG1(rdi) (0x510 + 0x100 * (rdi)) +#define RDI_CFG1_DROP_H_EN 5 +#define RDI_CFG1_DROP_V_EN 6 +#define RDI_CFG1_CROP_H_EN 7 +#define RDI_CFG1_CROP_V_EN 8 +#define RDI_CFG1_PIX_STORE 10 +#define RDI_CFG1_PACKING_FORMAT 15 + +#define CSID_RDI_CTRL(rdi) (0x504 + 0x100 * (rdi)) +#define RDI_CTRL_START_CMD 0 + +#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi) (0x548 + 0x100 * (rdi)) +#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi) (0x54C + 0x100 * (rdi)) + +static inline int reg_update_rdi(struct csid_device *csid, int n) +{ + return BIT(n + 4) + BIT(20 + n); +} +#define REG_UPDATE_RDI reg_update_rdi + +static void __csid_configure_rx(struct csid_device *csid, + struct csid_phy_config *phy, int vc) +{ + int val; + + val = (phy->lane_cnt - 1) << CSI2_RX_CFG0_NUM_ACTIVE_LANES; + val |= phy->lane_assign << CSI2_RX_CFG0_DL0_INPUT_SEL; + val |= (phy->csiphy_id + CSI2_RX_CFG0_PHY_SEL_BASE_IDX) << CSI2_RX_CFG0_PHY_NUM_SEL; + + writel(val, csid->base + CSID_CSI2_RX_CFG0); + + val = 1 << CSI2_RX_CFG1_ECC_CORRECTION_EN; + if (vc > 3) + val |= 1 << CSI2_RX_CFG1_VC_MODE; + writel(val, csid->base + CSID_CSI2_RX_CFG1); +} + +static void __csid_ctrl_rdi(struct csid_device *csid, int enable, u8 rdi) +{ + int val = 0; + + if (enable) + val = 1 << RDI_CTRL_START_CMD; + + writel(val, csid->base + CSID_RDI_CTRL(rdi)); +} + +static void __csid_configure_top(struct csid_device *csid) +{ + u32 val; + + /* csid lite doesn't need to configure top register */ + if (csid->res->is_lite) + return; + + /* CSID top is a new function in Titan780. + * CSID can connect to VFE & SFE(Sensor Front End). + * This connection is controlled by CSID top. + * Only enable VFE path in current driver. + */ + val = OUTPUT_IFE_EN | INTERNAL_CSID; + writel(val, csid->camss->csid_top_base + CSID_TOP_IO_PATH_CFG0(csid->id)); +} + +static void __csid_configure_rdi_stream(struct csid_device *csid, u8 enable, u8 vc) +{ + u32 val; + u8 lane_cnt = csid->phy.lane_cnt; + /* Source pads matching RDI channels on hardware. Pad 1 -> RDI0, Pad 2 -> RDI1, etc. */ + struct v4l2_mbus_framefmt *input_format = &csid->fmt[MSM_CSID_PAD_FIRST_SRC + vc]; + const struct csid_format_info *format = csid_get_fmt_entry(csid->res->formats->formats, + csid->res->formats->nformats, + input_format->code); + + if (!lane_cnt) + lane_cnt = 4; + + /* + * DT_ID is a two bit bitfield that is concatenated with + * the four least significant bits of the five bit VC + * bitfield to generate an internal CID value. + * + * CSID_RDI_CFG0(vc) + * DT_ID : 28:27 + * VC : 26:22 + * DT : 21:16 + * + * CID : VC 3:0 << 2 | DT_ID 1:0 + */ + u8 dt_id = vc & 0x03; + + val = 1 << RDI_CFG0_TIMESTAMP_EN; + val |= 1 << RDI_CFG0_TIMESTAMP_STB_SEL; + /* note: for non-RDI path, this should be format->decode_format */ + val |= DECODE_FORMAT_PAYLOAD_ONLY << RDI_CFG0_DECODE_FORMAT; + val |= vc << RDI_CFG0_VC; + val |= format->data_type << RDI_CFG0_DT; + val |= dt_id << RDI_CFG0_DT_ID; + + writel(val, csid->base + CSID_RDI_CFG0(vc)); + + val = 1 << RDI_CFG1_PACKING_FORMAT; + val |= 1 << RDI_CFG1_PIX_STORE; + val |= 1 << RDI_CFG1_DROP_H_EN; + val |= 1 << RDI_CFG1_DROP_V_EN; + val |= 1 << RDI_CFG1_CROP_H_EN; + val |= 1 << RDI_CFG1_CROP_V_EN; + + writel(val, csid->base + CSID_RDI_CFG1(vc)); + + val = 0; + writel(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PERIOD(vc)); + + val = 1; + writel(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PATTERN(vc)); + + val = 0; + writel(val, csid->base + CSID_RDI_CTRL(vc)); + + val = readl(csid->base + CSID_RDI_CFG0(vc)); + + if (enable) + val |= 1 << RDI_CFG0_EN; + writel(val, csid->base + CSID_RDI_CFG0(vc)); +} + +static void csid_configure_stream(struct csid_device *csid, u8 enable) +{ + u8 i; + + /* Loop through all enabled VCs and configure stream for each */ + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) + if (csid->phy.en_vc & BIT(i)) { + __csid_configure_top(csid); + __csid_configure_rdi_stream(csid, enable, i); + __csid_configure_rx(csid, &csid->phy, i); + __csid_ctrl_rdi(csid, enable, i); + } +} + +/* + * csid_isr - CSID module interrupt service routine + * @irq: Interrupt line + * @dev: CSID device + * + * Return IRQ_HANDLED on success + */ +static irqreturn_t csid_isr(int irq, void *dev) +{ + struct csid_device *csid = dev; + u32 val, buf_done_val; + u8 reset_done; + int i; + + val = readl(csid->base + CSID_TOP_IRQ_STATUS); + writel(val, csid->base + CSID_TOP_IRQ_CLEAR); + reset_done = val & BIT(TOP_IRQ_STATUS_RESET_DONE); + + val = readl(csid->base + CSID_CSI2_RX_IRQ_STATUS); + writel(val, csid->base + CSID_CSI2_RX_IRQ_CLEAR); + + buf_done_val = readl(csid->base + CSID_BUF_DONE_IRQ_STATUS); + writel(buf_done_val, csid->base + CSID_BUF_DONE_IRQ_CLEAR); + + /* Read and clear IRQ status for each enabled RDI channel */ + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) + if (csid->phy.en_vc & BIT(i)) { + val = readl(csid->base + CSID_CSI2_RDIN_IRQ_STATUS(i)); + writel(val, csid->base + CSID_CSI2_RDIN_IRQ_CLEAR(i)); + + if (buf_done_val & BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i)) { + /* For Titan 780, Buf Done IRQ® has been moved to CSID from VFE. + * Once CSID received Buf Done, need notify this event to VFE. + * Trigger VFE to handle Buf Done process. + */ + camss_buf_done(csid->camss, csid->id, i); + } + } + + val = 1 << IRQ_CMD_CLEAR; + writel(val, csid->base + CSID_IRQ_CMD); + + if (reset_done) + complete(&csid->reset_complete); + + return IRQ_HANDLED; +} + +/* + * csid_reset - Trigger reset on CSID module and wait to complete + * @csid: CSID device + * + * Return 0 on success or a negative error code otherwise + */ +static int csid_reset(struct csid_device *csid) +{ + unsigned long time; + u32 val; + int i; + + reinit_completion(&csid->reset_complete); + + writel(1, csid->base + CSID_TOP_IRQ_CLEAR); + writel(1, csid->base + CSID_IRQ_CMD); + writel(1, csid->base + CSID_TOP_IRQ_MASK); + + for (i = 0; i < MSM_CSID_MAX_SRC_STREAMS; i++) + if (csid->phy.en_vc & BIT(i)) { + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), + csid->base + CSID_BUF_DONE_IRQ_CLEAR); + writel(0x1 << IRQ_CMD_CLEAR, csid->base + CSID_IRQ_CMD); + writel(BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + i), + csid->base + CSID_BUF_DONE_IRQ_MASK); + } + + /* preserve registers */ + val = (0x1 << RST_LOCATION) | (0x1 << RST_MODE); + writel(val, csid->base + CSID_RST_CFG); + + val = (0x1 << SELECT_HW_RST) | (0x1 << SELECT_IRQ_RST); + writel(val, csid->base + CSID_RST_CMD); + + time = wait_for_completion_timeout(&csid->reset_complete, + msecs_to_jiffies(CSID_RESET_TIMEOUT_MS)); + if (!time) { + dev_err(csid->camss->dev, "CSID reset timeout\n"); + return -EIO; + } + + return 0; +} + +static void csid_subdev_reg_update(struct csid_device *csid, int port_id, bool is_clear) +{ + if (is_clear) { + csid->reg_update &= ~REG_UPDATE_RDI(csid, port_id); + } else { + csid->reg_update |= REG_UPDATE_RDI(csid, port_id); + writel(csid->reg_update, csid->base + CSID_REG_UPDATE_CMD); + } +} + +static void csid_subdev_init(struct csid_device *csid) +{ + /* nop */ +} + +const struct csid_hw_ops csid_ops_gen3 = { + /* No testgen pattern hw in csid gen3 HW */ + .configure_testgen_pattern = NULL, + .configure_stream = csid_configure_stream, + .hw_version = csid_hw_version, + .isr = csid_isr, + .reset = csid_reset, + .src_pad_code = csid_src_pad_code, + .subdev_init = csid_subdev_init, + .reg_update = csid_subdev_reg_update, +}; diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.h b/drivers/media/platform/qcom/camss/camss-csid-gen3.h new file mode 100644 index 000000000000..43aa0d8d89b9 --- /dev/null +++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * camss-csid-gen3.h + * + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module Generation 3 + * + * Copyright (c) 2024 Qualcomm Technologies, Inc. + */ +#ifndef QC_MSM_CAMSS_CSID_GEN3_H +#define QC_MSM_CAMSS_CSID_GEN3_H + +#define DECODE_FORMAT_UNCOMPRESSED_8_BIT 0x1 +#define DECODE_FORMAT_UNCOMPRESSED_10_BIT 0x2 +#define DECODE_FORMAT_UNCOMPRESSED_12_BIT 0x3 +#define DECODE_FORMAT_UNCOMPRESSED_14_BIT 0x4 +#define DECODE_FORMAT_UNCOMPRESSED_16_BIT 0x5 +#define DECODE_FORMAT_UNCOMPRESSED_20_BIT 0x6 +#define DECODE_FORMAT_UNCOMPRESSED_24_BIT 0x7 +#define DECODE_FORMAT_PAYLOAD_ONLY 0xf + + +#define PLAIN_FORMAT_PLAIN8 0x0 /* supports DPCM, UNCOMPRESSED_6/8_BIT */ +#define PLAIN_FORMAT_PLAIN16 0x1 /* supports DPCM, UNCOMPRESSED_10/16_BIT */ +#define PLAIN_FORMAT_PLAIN32 0x2 /* supports UNCOMPRESSED_20_BIT */ + +#endif /* QC_MSM_CAMSS_CSID_GEN3_H */ diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c index 5806df7e7a7c..8ce08929d91f 100644 --- a/drivers/media/platform/qcom/camss/camss-csid.c +++ b/drivers/media/platform/qcom/camss/camss-csid.c @@ -838,7 +838,7 @@ static void csid_try_format(struct csid_device *csid, break; case MSM_CSID_PAD_SRC: - if (csid->testgen_mode->cur.val == 0) { + if (!csid->testgen_mode || csid->testgen_mode->cur.val == 0) { /* Test generator is disabled, */ /* keep pad formats in sync */ u32 code = fmt->code; @@ -1042,6 +1042,7 @@ static int csid_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) static int csid_set_test_pattern(struct csid_device *csid, s32 value) { struct csid_testgen_config *tg = &csid->testgen; + const struct csid_hw_ops *hw_ops = csid->res->hw_ops; /* If CSID is linked to CSIPHY, do not allow to enable test generator */ if (value && media_pad_remote_pad_first(&csid->pads[MSM_CSID_PAD_SINK])) @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct csid_device *csid, s32 value) tg->enabled = !!value; - return csid->res->hw_ops->configure_testgen_pattern(csid, value); + if (hw_ops->configure_testgen_pattern) + return -EOPNOTSUPP; + else + return hw_ops->configure_testgen_pattern(csid, value); } /* @@ -1121,6 +1125,19 @@ int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid, csid->base = devm_platform_ioremap_resource_byname(pdev, res->reg[0]); if (IS_ERR(csid->base)) return PTR_ERR(csid->base); + + /* CSID "top" is a new function in new version HW, + * CSID can connect to VFE & SFE(Sensor Front End). + * this connection is controlled by CSID "top" registers. + * There is only one CSID "top" region for all CSIDs. + */ + if (!csid_is_lite(csid) && res->reg[1] && !camss->csid_top_base) { + camss->csid_top_base = + devm_platform_ioremap_resource_byname(pdev, res->reg[1]); + + if (IS_ERR(camss->csid_top_base)) + return PTR_ERR(camss->csid_top_base); + } } /* Interrupt */ @@ -1267,7 +1284,7 @@ static int csid_link_setup(struct media_entity *entity, /* If test generator is enabled */ /* do not allow a link from CSIPHY to CSID */ - if (csid->testgen_mode->cur.val != 0) + if (csid->testgen_mode && csid->testgen_mode->cur.val != 0) return -EBUSY; sd = media_entity_to_v4l2_subdev(remote->entity); @@ -1366,15 +1383,20 @@ int msm_csid_register_entity(struct csid_device *csid, return ret; } - csid->testgen_mode = v4l2_ctrl_new_std_menu_items(&csid->ctrls, - &csid_ctrl_ops, V4L2_CID_TEST_PATTERN, - csid->testgen.nmodes, 0, 0, - csid->testgen.modes); - - if (csid->ctrls.error) { - dev_err(dev, "Failed to init ctrl: %d\n", csid->ctrls.error); - ret = csid->ctrls.error; - goto free_ctrl; + if (csid->res->hw_ops->configure_testgen_pattern) { + csid->testgen_mode = + v4l2_ctrl_new_std_menu_items(&csid->ctrls, + &csid_ctrl_ops, + V4L2_CID_TEST_PATTERN, + csid->testgen.nmodes, 0, + 0, csid->testgen.modes); + + if (csid->ctrls.error) { + dev_err(dev, "Failed to init ctrl: %d\n", + csid->ctrls.error); + ret = csid->ctrls.error; + goto free_ctrl; + } } csid->subdev.ctrl_handler = &csid->ctrls; diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h index f52209b96583..2715707dcdb4 100644 --- a/drivers/media/platform/qcom/camss/camss-csid.h +++ b/drivers/media/platform/qcom/camss/camss-csid.h @@ -152,6 +152,14 @@ struct csid_hw_ops { * @csid: CSID device */ void (*subdev_init)(struct csid_device *csid); + + /* + * reg_update - receive message from other sub device + * @csid: CSID device + * @port_id: Port id + * @is_clear: Indicate if it is clearing reg update or setting reg update + */ + void (*reg_update)(struct csid_device *csid, int port_id, bool is_clear); }; struct csid_subdev_resources { @@ -168,6 +176,7 @@ struct csid_device { struct media_pad pads[MSM_CSID_PADS_NUM]; void __iomem *base; u32 irq; + u32 reg_update; char irq_name[30]; struct camss_clock *clock; int nclocks; @@ -228,6 +237,7 @@ extern const struct csid_formats csid_formats_gen2; extern const struct csid_hw_ops csid_ops_4_1; extern const struct csid_hw_ops csid_ops_4_7; extern const struct csid_hw_ops csid_ops_gen2; +extern const struct csid_hw_ops csid_ops_gen3; /* * csid_is_lite - Check if CSID is CSID lite. diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c index 1cdd40f49c27..7ee102948dc4 100644 --- a/drivers/media/platform/qcom/camss/camss.c +++ b/drivers/media/platform/qcom/camss/camss.c @@ -1588,6 +1588,84 @@ static const struct camss_subdev_resources csiphy_res_8550[] = { } }; +static const struct camss_subdev_resources csid_res_8550[] = { + /* CSID0 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "csid", "csiphy_rx" }, + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, + .reg = { "csid0", "csid_top" }, + .interrupt = { "csid0" }, + .csid = { + .is_lite = false, + .parent_dev_ops = &vfe_parent_dev_ops, + .hw_ops = &csid_ops_gen3, + .formats = &csid_formats_gen2 + } + }, + /* CSID1 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "csid", "csiphy_rx" }, + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, + .reg = { "csid1", "csid_top" }, + .interrupt = { "csid1" }, + .csid = { + .is_lite = false, + .parent_dev_ops = &vfe_parent_dev_ops, + .hw_ops = &csid_ops_gen3, + .formats = &csid_formats_gen2 + } + }, + /* CSID2 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "csid", "csiphy_rx" }, + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, + .reg = { "csid2", "csid_top" }, + .interrupt = { "csid2" }, + .csid = { + .is_lite = false, + .parent_dev_ops = &vfe_parent_dev_ops, + .hw_ops = &csid_ops_gen3, + .formats = &csid_formats_gen2 + } + }, + /* CSID3 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx" }, + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, + .reg = { "csid_lite0" }, + .interrupt = { "csid_lite0" }, + .csid = { + .is_lite = true, + .parent_dev_ops = &vfe_parent_dev_ops, + .hw_ops = &csid_ops_gen3, + .formats = &csid_formats_gen2 + } + }, + /* CSID4 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx" }, + .clock_rate = { { 400000000, 480000000, 480000000, 480000000, 480000000 }, + { 400000000, 480000000, 480000000, 480000000, 480000000 } }, + .reg = { "csid_lite1" }, + .interrupt = { "csid_lite1" }, + .csid = { + .is_lite = true, + .parent_dev_ops = &vfe_parent_dev_ops, + .hw_ops = &csid_ops_gen3, + .formats = &csid_formats_gen2 + } + } +}; + static const struct resources_icc icc_res_sm8550[] = { { .name = "ahb", @@ -1768,6 +1846,17 @@ void camss_pm_domain_off(struct camss *camss, int id) } } +void camss_buf_done(struct camss *camss, int hw_id, int port_id) +{ + struct vfe_device *vfe; + + if (hw_id < camss->res->vfe_num) { + vfe = &(camss->vfe[hw_id]); + + vfe->res->hw_ops->vfe_buf_done(vfe, port_id); + } +} + static int vfe_parent_dev_ops_get(struct camss *camss, int id) { int ret = -EINVAL; @@ -2578,9 +2667,11 @@ static const struct camss_resources sm8550_resources = { .version = CAMSS_8550, .pd_name = "top", .csiphy_res = csiphy_res_8550, + .csid_res = csid_res_8550, .icc_res = icc_res_sm8550, .icc_path_num = ARRAY_SIZE(icc_res_sm8550), .csiphy_num = ARRAY_SIZE(csiphy_res_8550), + .csid_num = ARRAY_SIZE(csid_res_8550), .link_entities = camss_link_entities }; diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h index 5568ab32d5d7..d6b6558a82b9 100644 --- a/drivers/media/platform/qcom/camss/camss.h +++ b/drivers/media/platform/qcom/camss/camss.h @@ -117,6 +117,7 @@ struct camss { struct device_link *genpd_link; struct icc_path *icc_path[ICC_SM8250_COUNT]; const struct camss_resources *res; + void __iomem *csid_top_base; }; struct camss_camera_interface { @@ -155,5 +156,6 @@ void camss_pm_domain_off(struct camss *camss, int id); int camss_vfe_get(struct camss *camss, int id); void camss_vfe_put(struct camss *camss, int id); void camss_delete(struct camss *camss); +void camss_buf_done(struct camss *camss, int hw_id, int port_id); #endif /* QC_MSM_CAMSS_H */