diff mbox series

[v2,2/5] clk: qcom: gcc: Add support for Global Clock controller found on MSM8226

Message ID 20210418122909.71434-3-bartosz.dudziak@snejp.pl (mailing list archive)
State Not Applicable, archived
Headers show
Series Samsung Galaxy S III Neo Initial DTS | expand

Commit Message

Bartosz Dudziak April 18, 2021, 12:29 p.m. UTC 
Modify existing MSM8974 driver to support MSM8226 SoC. Override frequencies
which are different in this older chip. Register all the clocks to the
framework for the clients to be able to request for them.

Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
---
 drivers/clk/qcom/gcc-msm8974.c | 169 +++++++++++++++++++++++++++++++--
 1 file changed, 162 insertions(+), 7 deletions(-)

Comments

Stephen Boyd June 28, 2021, 12:01 a.m. UTC | #1 
Quoting Bartosz Dudziak (2021-04-18 05:29:06)
> Modify existing MSM8974 driver to support MSM8226 SoC. Override frequencies
> which are different in this older chip. Register all the clocks to the
> framework for the clients to be able to request for them.
> 
> Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
> ---

Applied to clk-next
diff mbox series

Patch

diff --git a/drivers/clk/qcom/gcc-msm8974.c b/drivers/clk/qcom/gcc-msm8974.c
index 740d3c44c0..bf305fa9e5 100644
--- a/drivers/clk/qcom/gcc-msm8974.c
+++ b/drivers/clk/qcom/gcc-msm8974.c
@@ -719,6 +719,12 @@  static struct clk_rcg2 blsp2_uart6_apps_clk_src = {
 	},
 };
 
+static const struct freq_tbl ftbl_gcc_ce1_clk_msm8226[] = {
+	F(50000000, P_GPLL0, 12, 0, 0),
+	F(100000000, P_GPLL0, 6, 0, 0),
+	{ }
+};
+
 static const struct freq_tbl ftbl_gcc_ce1_clk[] = {
 	F(50000000, P_GPLL0, 12, 0, 0),
 	F(75000000, P_GPLL0, 8, 0, 0),
@@ -761,6 +767,11 @@  static struct clk_rcg2 ce2_clk_src = {
 	},
 };
 
+static const struct freq_tbl ftbl_gcc_gp_clk_msm8226[] = {
+	F(19200000, P_XO, 1, 0, 0),
+	{ }
+};
+
 static const struct freq_tbl ftbl_gcc_gp_clk[] = {
 	F(4800000, P_XO, 4, 0, 0),
 	F(6000000, P_GPLL0, 10, 1, 10),
@@ -1955,6 +1966,10 @@  static struct clk_branch gcc_mss_q6_bimc_axi_clk = {
 		.enable_mask = BIT(0),
 		.hw.init = &(struct clk_init_data){
 			.name = "gcc_mss_q6_bimc_axi_clk",
+			.parent_names = (const char *[]){
+				"system_noc_clk_src",
+			},
+			.num_parents = 1,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1993,6 +2008,20 @@  static struct clk_branch gcc_pdm_ahb_clk = {
 	},
 };
 
+static struct clk_branch gcc_pdm_xo4_clk = {
+	.halt_reg = 0x0cc8,
+	.clkr = {
+		.enable_reg = 0x0cc8,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_pdm_xo4_clk",
+			.parent_names = (const char *[]){ "xo" },
+			.num_parents = 1,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct clk_branch gcc_prng_ahb_clk = {
 	.halt_reg = 0x0d04,
 	.halt_check = BRANCH_HALT_VOTED,
@@ -2430,6 +2459,121 @@  static struct gdsc usb_hs_hsic_gdsc = {
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
+static struct clk_regmap *gcc_msm8226_clocks[] = {
+	[GPLL0] = &gpll0.clkr,
+	[GPLL0_VOTE] = &gpll0_vote,
+	[GPLL1] = &gpll1.clkr,
+	[GPLL1_VOTE] = &gpll1_vote,
+	[CONFIG_NOC_CLK_SRC] = &config_noc_clk_src.clkr,
+	[PERIPH_NOC_CLK_SRC] = &periph_noc_clk_src.clkr,
+	[SYSTEM_NOC_CLK_SRC] = &system_noc_clk_src.clkr,
+	[BLSP1_QUP1_I2C_APPS_CLK_SRC] = &blsp1_qup1_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP1_SPI_APPS_CLK_SRC] = &blsp1_qup1_spi_apps_clk_src.clkr,
+	[BLSP1_QUP2_I2C_APPS_CLK_SRC] = &blsp1_qup2_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP2_SPI_APPS_CLK_SRC] = &blsp1_qup2_spi_apps_clk_src.clkr,
+	[BLSP1_QUP3_I2C_APPS_CLK_SRC] = &blsp1_qup3_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP3_SPI_APPS_CLK_SRC] = &blsp1_qup3_spi_apps_clk_src.clkr,
+	[BLSP1_QUP4_I2C_APPS_CLK_SRC] = &blsp1_qup4_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP4_SPI_APPS_CLK_SRC] = &blsp1_qup4_spi_apps_clk_src.clkr,
+	[BLSP1_QUP5_I2C_APPS_CLK_SRC] = &blsp1_qup5_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP5_SPI_APPS_CLK_SRC] = &blsp1_qup5_spi_apps_clk_src.clkr,
+	[BLSP1_QUP6_I2C_APPS_CLK_SRC] = &blsp1_qup6_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP6_SPI_APPS_CLK_SRC] = &blsp1_qup6_spi_apps_clk_src.clkr,
+	[BLSP1_UART1_APPS_CLK_SRC] = &blsp1_uart1_apps_clk_src.clkr,
+	[BLSP1_UART2_APPS_CLK_SRC] = &blsp1_uart2_apps_clk_src.clkr,
+	[BLSP1_UART3_APPS_CLK_SRC] = &blsp1_uart3_apps_clk_src.clkr,
+	[BLSP1_UART4_APPS_CLK_SRC] = &blsp1_uart4_apps_clk_src.clkr,
+	[BLSP1_UART5_APPS_CLK_SRC] = &blsp1_uart5_apps_clk_src.clkr,
+	[BLSP1_UART6_APPS_CLK_SRC] = &blsp1_uart6_apps_clk_src.clkr,
+	[CE1_CLK_SRC] = &ce1_clk_src.clkr,
+	[GP1_CLK_SRC] = &gp1_clk_src.clkr,
+	[GP2_CLK_SRC] = &gp2_clk_src.clkr,
+	[GP3_CLK_SRC] = &gp3_clk_src.clkr,
+	[PDM2_CLK_SRC] = &pdm2_clk_src.clkr,
+	[SDCC1_APPS_CLK_SRC] = &sdcc1_apps_clk_src.clkr,
+	[SDCC2_APPS_CLK_SRC] = &sdcc2_apps_clk_src.clkr,
+	[SDCC3_APPS_CLK_SRC] = &sdcc3_apps_clk_src.clkr,
+	[USB_HS_SYSTEM_CLK_SRC] = &usb_hs_system_clk_src.clkr,
+	[USB_HSIC_CLK_SRC] = &usb_hsic_clk_src.clkr,
+	[USB_HSIC_IO_CAL_CLK_SRC] = &usb_hsic_io_cal_clk_src.clkr,
+	[USB_HSIC_SYSTEM_CLK_SRC] = &usb_hsic_system_clk_src.clkr,
+	[GCC_BAM_DMA_AHB_CLK] = &gcc_bam_dma_ahb_clk.clkr,
+	[GCC_BLSP1_AHB_CLK] = &gcc_blsp1_ahb_clk.clkr,
+	[GCC_BLSP1_QUP1_I2C_APPS_CLK] = &gcc_blsp1_qup1_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP1_SPI_APPS_CLK] = &gcc_blsp1_qup1_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP2_I2C_APPS_CLK] = &gcc_blsp1_qup2_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP2_SPI_APPS_CLK] = &gcc_blsp1_qup2_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP3_I2C_APPS_CLK] = &gcc_blsp1_qup3_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP3_SPI_APPS_CLK] = &gcc_blsp1_qup3_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP4_I2C_APPS_CLK] = &gcc_blsp1_qup4_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP4_SPI_APPS_CLK] = &gcc_blsp1_qup4_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP5_I2C_APPS_CLK] = &gcc_blsp1_qup5_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP5_SPI_APPS_CLK] = &gcc_blsp1_qup5_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP6_I2C_APPS_CLK] = &gcc_blsp1_qup6_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP6_SPI_APPS_CLK] = &gcc_blsp1_qup6_spi_apps_clk.clkr,
+	[GCC_BLSP1_UART1_APPS_CLK] = &gcc_blsp1_uart1_apps_clk.clkr,
+	[GCC_BLSP1_UART2_APPS_CLK] = &gcc_blsp1_uart2_apps_clk.clkr,
+	[GCC_BLSP1_UART3_APPS_CLK] = &gcc_blsp1_uart3_apps_clk.clkr,
+	[GCC_BLSP1_UART4_APPS_CLK] = &gcc_blsp1_uart4_apps_clk.clkr,
+	[GCC_BLSP1_UART5_APPS_CLK] = &gcc_blsp1_uart5_apps_clk.clkr,
+	[GCC_BLSP1_UART6_APPS_CLK] = &gcc_blsp1_uart6_apps_clk.clkr,
+	[GCC_BOOT_ROM_AHB_CLK] = &gcc_boot_rom_ahb_clk.clkr,
+	[GCC_CE1_AHB_CLK] = &gcc_ce1_ahb_clk.clkr,
+	[GCC_CE1_AXI_CLK] = &gcc_ce1_axi_clk.clkr,
+	[GCC_CE1_CLK] = &gcc_ce1_clk.clkr,
+	[GCC_GP1_CLK] = &gcc_gp1_clk.clkr,
+	[GCC_GP2_CLK] = &gcc_gp2_clk.clkr,
+	[GCC_GP3_CLK] = &gcc_gp3_clk.clkr,
+	[GCC_LPASS_Q6_AXI_CLK] = &gcc_lpass_q6_axi_clk.clkr,
+	[GCC_MSS_CFG_AHB_CLK] = &gcc_mss_cfg_ahb_clk.clkr,
+	[GCC_MSS_Q6_BIMC_AXI_CLK] = &gcc_mss_q6_bimc_axi_clk.clkr,
+	[GCC_PDM2_CLK] = &gcc_pdm2_clk.clkr,
+	[GCC_PDM_AHB_CLK] = &gcc_pdm_ahb_clk.clkr,
+	[GCC_PDM_XO4_CLK] = &gcc_pdm_xo4_clk.clkr,
+	[GCC_PRNG_AHB_CLK] = &gcc_prng_ahb_clk.clkr,
+	[GCC_SDCC1_AHB_CLK] = &gcc_sdcc1_ahb_clk.clkr,
+	[GCC_SDCC1_APPS_CLK] = &gcc_sdcc1_apps_clk.clkr,
+	[GCC_SDCC2_AHB_CLK] = &gcc_sdcc2_ahb_clk.clkr,
+	[GCC_SDCC2_APPS_CLK] = &gcc_sdcc2_apps_clk.clkr,
+	[GCC_SDCC3_AHB_CLK] = &gcc_sdcc3_ahb_clk.clkr,
+	[GCC_SDCC3_APPS_CLK] = &gcc_sdcc3_apps_clk.clkr,
+	[GCC_USB2A_PHY_SLEEP_CLK] = &gcc_usb2a_phy_sleep_clk.clkr,
+	[GCC_USB_HS_AHB_CLK] = &gcc_usb_hs_ahb_clk.clkr,
+	[GCC_USB_HS_SYSTEM_CLK] = &gcc_usb_hs_system_clk.clkr,
+	[GCC_USB_HSIC_AHB_CLK] = &gcc_usb_hsic_ahb_clk.clkr,
+	[GCC_USB_HSIC_CLK] = &gcc_usb_hsic_clk.clkr,
+	[GCC_USB_HSIC_IO_CAL_CLK] = &gcc_usb_hsic_io_cal_clk.clkr,
+	[GCC_USB_HSIC_SYSTEM_CLK] = &gcc_usb_hsic_system_clk.clkr,
+};
+
+static const struct qcom_reset_map gcc_msm8226_resets[] = {
+	[GCC_USB_HS_HSIC_BCR] = { 0x0400 },
+	[GCC_USB_HS_BCR] = { 0x0480 },
+	[GCC_USB2A_PHY_BCR] = { 0x04a8 },
+};
+
+static struct gdsc *gcc_msm8226_gdscs[] = {
+	[USB_HS_HSIC_GDSC] = &usb_hs_hsic_gdsc,
+};
+
+static const struct regmap_config gcc_msm8226_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= 0x1a80,
+	.fast_io	= true,
+};
+
+static const struct qcom_cc_desc gcc_msm8226_desc = {
+	.config = &gcc_msm8226_regmap_config,
+	.clks = gcc_msm8226_clocks,
+	.num_clks = ARRAY_SIZE(gcc_msm8226_clocks),
+	.resets = gcc_msm8226_resets,
+	.num_resets = ARRAY_SIZE(gcc_msm8226_resets),
+	.gdscs = gcc_msm8226_gdscs,
+	.num_gdscs = ARRAY_SIZE(gcc_msm8226_gdscs),
+};
+
 static struct clk_regmap *gcc_msm8974_clocks[] = {
 	[GPLL0] = &gpll0.clkr,
 	[GPLL0_VOTE] = &gpll0_vote,
@@ -2682,13 +2826,22 @@  static const struct qcom_cc_desc gcc_msm8974_desc = {
 };
 
 static const struct of_device_id gcc_msm8974_match_table[] = {
-	{ .compatible = "qcom,gcc-msm8974" },
-	{ .compatible = "qcom,gcc-msm8974pro" , .data = (void *)1UL },
-	{ .compatible = "qcom,gcc-msm8974pro-ac", .data = (void *)1UL },
+	{ .compatible = "qcom,gcc-msm8226", .data = &gcc_msm8226_desc },
+	{ .compatible = "qcom,gcc-msm8974", .data = &gcc_msm8974_desc },
+	{ .compatible = "qcom,gcc-msm8974pro", .data = &gcc_msm8974_desc },
+	{ .compatible = "qcom,gcc-msm8974pro-ac", .data = &gcc_msm8974_desc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, gcc_msm8974_match_table);
 
+static void msm8226_clock_override(void)
+{
+	ce1_clk_src.freq_tbl = ftbl_gcc_ce1_clk_msm8226;
+	gp1_clk_src.freq_tbl = ftbl_gcc_gp_clk_msm8226;
+	gp2_clk_src.freq_tbl = ftbl_gcc_gp_clk_msm8226;
+	gp3_clk_src.freq_tbl = ftbl_gcc_gp_clk_msm8226;
+}
+
 static void msm8974_pro_clock_override(void)
 {
 	sdcc1_apps_clk_src_init.parent_names = gcc_xo_gpll0_gpll4;
@@ -2708,16 +2861,18 @@  static int gcc_msm8974_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct device *dev = &pdev->dev;
-	bool pro;
 	const struct of_device_id *id;
 
 	id = of_match_device(gcc_msm8974_match_table, dev);
 	if (!id)
 		return -ENODEV;
-	pro = !!(id->data);
 
-	if (pro)
-		msm8974_pro_clock_override();
+	if (!of_device_is_compatible(dev->of_node, "qcom,gcc-msm8974")) {
+		if (id->data == &gcc_msm8226_desc)
+			msm8226_clock_override();
+		else
+			msm8974_pro_clock_override();
+	}
 
 	ret = qcom_cc_register_board_clk(dev, "xo_board", "xo", 19200000);
 	if (ret)