[v3.1,1/3] drm/rockchip: dw_hdmi: add RK3399 HDMI support
diff mbox

Message ID 1498115845-7177-1-git-send-email-mark.yao@rock-chips.com
State New
Headers show

Commit Message

yao mark June 22, 2017, 7:17 a.m. UTC
RK3399 and RK3288 shared the same HDMI IP controller, only some light
difference with GRF configure.

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---
Changes in v3.1:
  Correct documentation compatible's format(Rob Herring).
Changes in v3:
  remove hdmi_phy_configure_dwc_hdmi_3d_tx callbak.

Changes in v2:
  reuse hdmi_phy_configure_dwc_hdmi_3d_tx for phy configure
  fixup Documentation

 .../bindings/display/rockchip/dw_hdmi-rockchip.txt |  4 +-
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c        | 67 ++++++++++++++++++----
 2 files changed, 59 insertions(+), 12 deletions(-)

Comments

Heiko Stübner June 22, 2017, 7:31 a.m. UTC | #1
Hi Mark,

Am Donnerstag, 22. Juni 2017, 15:17:24 CEST schrieb Mark Yao:
> RK3399 and RK3288 shared the same HDMI IP controller, only some light
> difference with GRF configure.
> 
> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
> ---
> Changes in v3.1:
>   Correct documentation compatible's format(Rob Herring).
> Changes in v3:
>   remove hdmi_phy_configure_dwc_hdmi_3d_tx callbak.
> 
> Changes in v2:
>   reuse hdmi_phy_configure_dwc_hdmi_3d_tx for phy configure
>   fixup Documentation
> 
>  .../bindings/display/rockchip/dw_hdmi-rockchip.txt |  4 +-
>  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c        | 67 ++++++++++++++++++----
>  2 files changed, 59 insertions(+), 12 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
> index 046076c..7039a15 100644
> --- a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
> +++ b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
> @@ -11,7 +11,9 @@ following device-specific properties.
>  
>  Required properties:
>  
> -- compatible: Shall contain "rockchip,rk3288-dw-hdmi".
> +- compatible: should be one of the following:
> +		"rockchip,rk3288-dw-hdmi"
> +		"rockchip,rk3399-dw-hdmi"
>  - reg: See dw_hdmi.txt.
>  - reg-io-width: See dw_hdmi.txt. Shall be 4.
>  - interrupts: HDMI interrupt number
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> index 63dab6f..90aaaf4 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> @@ -20,13 +20,30 @@
>  #include "rockchip_drm_drv.h"
>  #include "rockchip_drm_vop.h"
>  
> -#define GRF_SOC_CON6                    0x025c
> -#define HDMI_SEL_VOP_LIT                (1 << 4)
> +#define RK3288_GRF_SOC_CON6		0x025C
> +#define RK3288_HDMI_LCDC_SEL		BIT(4)
> +#define RK3399_GRF_SOC_CON20		0x6250
> +#define RK3399_HDMI_LCDC_SEL		BIT(6)
> +
> +#define HIWORD_UPDATE(val, mask)	(val | (mask) << 16)
> +
> +/**
> + * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips
> + * @lcdsel_grf_reg: grf register offset of lcdc select
> + * @lcdsel_big: reg value of selecting vop big for HDMI
> + * @lcdsel_lit: reg value of selecting vop little for HDMI
> + */
> +struct rockchip_hdmi_chip_data {
> +	u32	lcdsel_grf_reg;

How do you plan on handling the rk3368 (with only one VOP and thus
no selection happening)? I'd just make the above an int, so we could
set it to -1 for that case. (value 0 is after all a valid reg).


Heiko


> +	u32	lcdsel_big;
> +	u32	lcdsel_lit;
> +};
>  
>  struct rockchip_hdmi {
>  	struct device *dev;
>  	struct regmap *regmap;
>  	struct drm_encoder encoder;
> +	const struct rockchip_hdmi_chip_data *chip_data;
>  };
>  
>  #define to_rockchip_hdmi(x)	container_of(x, struct rockchip_hdmi, x)
> @@ -198,17 +215,20 @@ static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
>  {
>  	struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
>  	u32 val;
> -	int mux;
> +	int ret;
>  
> -	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
> -	if (mux)
> -		val = HDMI_SEL_VOP_LIT | (HDMI_SEL_VOP_LIT << 16);
> +	ret = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
> +	if (ret)
> +		val = hdmi->chip_data->lcdsel_lit;
>  	else
> -		val = HDMI_SEL_VOP_LIT << 16;
> +		val = hdmi->chip_data->lcdsel_big;
> +
> +	ret = regmap_write(hdmi->regmap, hdmi->chip_data->lcdsel_grf_reg, val);
> +	if (ret != 0)
> +		dev_err(hdmi->dev, "Could not write to GRF: %d\n", ret);
>  
> -	regmap_write(hdmi->regmap, GRF_SOC_CON6, val);
>  	dev_dbg(hdmi->dev, "vop %s output to hdmi\n",
> -		(mux) ? "LIT" : "BIG");
> +		ret ? "LIT" : "BIG");
>  }
>  
>  static int
> @@ -232,16 +252,40 @@ static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
>  	.atomic_check = dw_hdmi_rockchip_encoder_atomic_check,
>  };
>  
> -static const struct dw_hdmi_plat_data rockchip_hdmi_drv_data = {
> +static struct rockchip_hdmi_chip_data rk3288_chip_data = {
> +	.lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
> +	.lcdsel_big = HIWORD_UPDATE(0, RK3288_HDMI_LCDC_SEL),
> +	.lcdsel_lit = HIWORD_UPDATE(RK3288_HDMI_LCDC_SEL, RK3288_HDMI_LCDC_SEL),
> +};
> +
> +static const struct dw_hdmi_plat_data rk3288_hdmi_drv_data = {
> +	.mode_valid = dw_hdmi_rockchip_mode_valid,
> +	.mpll_cfg   = rockchip_mpll_cfg,
> +	.cur_ctr    = rockchip_cur_ctr,
> +	.phy_config = rockchip_phy_config,
> +	.phy_data = &rk3288_chip_data,
> +};
> +
> +static struct rockchip_hdmi_chip_data rk3399_chip_data = {
> +	.lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
> +	.lcdsel_big = HIWORD_UPDATE(0, RK3399_HDMI_LCDC_SEL),
> +	.lcdsel_lit = HIWORD_UPDATE(RK3399_HDMI_LCDC_SEL, RK3399_HDMI_LCDC_SEL),
> +};
> +
> +static const struct dw_hdmi_plat_data rk3399_hdmi_drv_data = {
>  	.mode_valid = dw_hdmi_rockchip_mode_valid,
>  	.mpll_cfg   = rockchip_mpll_cfg,
>  	.cur_ctr    = rockchip_cur_ctr,
>  	.phy_config = rockchip_phy_config,
> +	.phy_data = &rk3399_chip_data,
>  };
>  
>  static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
>  	{ .compatible = "rockchip,rk3288-dw-hdmi",
> -	  .data = &rockchip_hdmi_drv_data
> +	  .data = &rk3288_hdmi_drv_data
> +	},
> +	{ .compatible = "rockchip,rk3399-dw-hdmi",
> +	  .data = &rk3399_hdmi_drv_data
>  	},
>  	{},
>  };
> @@ -268,6 +312,7 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
>  	match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node);
>  	plat_data = match->data;
>  	hdmi->dev = &pdev->dev;
> +	hdmi->chip_data = plat_data->phy_data;
>  	encoder = &hdmi->encoder;
>  
>  	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
>
yao mark June 22, 2017, 8:02 a.m. UTC | #2
On 2017年06月22日 15:31, Heiko Stuebner wrote:
>> +
>> >+/**
>> >+ * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips
>> >+ * @lcdsel_grf_reg: grf register offset of lcdc select
>> >+ * @lcdsel_big: reg value of selecting vop big for HDMI
>> >+ * @lcdsel_lit: reg value of selecting vop little for HDMI
>> >+ */
>> >+struct rockchip_hdmi_chip_data {
>> >+	u32	lcdsel_grf_reg;
> How do you plan on handling the rk3368 (with only one VOP and thus
> no selection happening)? I'd just make the above an int, so we could
> set it to -1 for that case. (value 0 is after all a valid reg).

It's a problem handling on rk3368, using -1 to judge means that we need
initial the lcdsel_grf_reg to -1 on rk3368 platform, we need always add a platform
data to handle it, seems not good enough.

Since the hdmi chip data only use for vop selection, maybe we can judge with
checking hdmi->chip_data == NULL for the case.

Mark.

>
> Heiko
>
>
Heiko Stübner June 22, 2017, 8:25 a.m. UTC | #3
Am Donnerstag, 22. Juni 2017, 16:02:44 CEST schrieb Mark yao:
> On 2017年06月22日 15:31, Heiko Stuebner wrote:
> >> +
> >> >+/**
> >> >+ * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips
> >> >+ * @lcdsel_grf_reg: grf register offset of lcdc select
> >> >+ * @lcdsel_big: reg value of selecting vop big for HDMI
> >> >+ * @lcdsel_lit: reg value of selecting vop little for HDMI
> >> >+ */
> >> >+struct rockchip_hdmi_chip_data {
> >> >+	u32	lcdsel_grf_reg;
> > How do you plan on handling the rk3368 (with only one VOP and thus
> > no selection happening)? I'd just make the above an int, so we could
> > set it to -1 for that case. (value 0 is after all a valid reg).
> 
> It's a problem handling on rk3368, using -1 to judge means that we need
> initial the lcdsel_grf_reg to -1 on rk3368 platform, we need always add a platform
> data to handle it, seems not good enough.
> 
> Since the hdmi chip data only use for vop selection, maybe we can judge with
> checking hdmi->chip_data == NULL for the case.

yeah, that could work as well ... as long as the grf-vop-select is the only chip-data
Rob Herring June 22, 2017, 5:04 p.m. UTC | #4
On Thu, Jun 22, 2017 at 2:17 AM, Mark Yao <mark.yao@rock-chips.com> wrote:
> RK3399 and RK3288 shared the same HDMI IP controller, only some light
> difference with GRF configure.
>
> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
> ---
> Changes in v3.1:
>   Correct documentation compatible's format(Rob Herring).
> Changes in v3:
>   remove hdmi_phy_configure_dwc_hdmi_3d_tx callbak.
>
> Changes in v2:
>   reuse hdmi_phy_configure_dwc_hdmi_3d_tx for phy configure
>   fixup Documentation
>
>  .../bindings/display/rockchip/dw_hdmi-rockchip.txt |  4 +-

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c        | 67 ++++++++++++++++++----
>  2 files changed, 59 insertions(+), 12 deletions(-)

Patch
diff mbox

diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
index 046076c..7039a15 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
@@ -11,7 +11,9 @@  following device-specific properties.
 
 Required properties:
 
-- compatible: Shall contain "rockchip,rk3288-dw-hdmi".
+- compatible: should be one of the following:
+		"rockchip,rk3288-dw-hdmi"
+		"rockchip,rk3399-dw-hdmi"
 - reg: See dw_hdmi.txt.
 - reg-io-width: See dw_hdmi.txt. Shall be 4.
 - interrupts: HDMI interrupt number
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 63dab6f..90aaaf4 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -20,13 +20,30 @@ 
 #include "rockchip_drm_drv.h"
 #include "rockchip_drm_vop.h"
 
-#define GRF_SOC_CON6                    0x025c
-#define HDMI_SEL_VOP_LIT                (1 << 4)
+#define RK3288_GRF_SOC_CON6		0x025C
+#define RK3288_HDMI_LCDC_SEL		BIT(4)
+#define RK3399_GRF_SOC_CON20		0x6250
+#define RK3399_HDMI_LCDC_SEL		BIT(6)
+
+#define HIWORD_UPDATE(val, mask)	(val | (mask) << 16)
+
+/**
+ * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips
+ * @lcdsel_grf_reg: grf register offset of lcdc select
+ * @lcdsel_big: reg value of selecting vop big for HDMI
+ * @lcdsel_lit: reg value of selecting vop little for HDMI
+ */
+struct rockchip_hdmi_chip_data {
+	u32	lcdsel_grf_reg;
+	u32	lcdsel_big;
+	u32	lcdsel_lit;
+};
 
 struct rockchip_hdmi {
 	struct device *dev;
 	struct regmap *regmap;
 	struct drm_encoder encoder;
+	const struct rockchip_hdmi_chip_data *chip_data;
 };
 
 #define to_rockchip_hdmi(x)	container_of(x, struct rockchip_hdmi, x)
@@ -198,17 +215,20 @@  static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
 {
 	struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
 	u32 val;
-	int mux;
+	int ret;
 
-	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
-	if (mux)
-		val = HDMI_SEL_VOP_LIT | (HDMI_SEL_VOP_LIT << 16);
+	ret = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
+	if (ret)
+		val = hdmi->chip_data->lcdsel_lit;
 	else
-		val = HDMI_SEL_VOP_LIT << 16;
+		val = hdmi->chip_data->lcdsel_big;
+
+	ret = regmap_write(hdmi->regmap, hdmi->chip_data->lcdsel_grf_reg, val);
+	if (ret != 0)
+		dev_err(hdmi->dev, "Could not write to GRF: %d\n", ret);
 
-	regmap_write(hdmi->regmap, GRF_SOC_CON6, val);
 	dev_dbg(hdmi->dev, "vop %s output to hdmi\n",
-		(mux) ? "LIT" : "BIG");
+		ret ? "LIT" : "BIG");
 }
 
 static int
@@ -232,16 +252,40 @@  static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
 	.atomic_check = dw_hdmi_rockchip_encoder_atomic_check,
 };
 
-static const struct dw_hdmi_plat_data rockchip_hdmi_drv_data = {
+static struct rockchip_hdmi_chip_data rk3288_chip_data = {
+	.lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
+	.lcdsel_big = HIWORD_UPDATE(0, RK3288_HDMI_LCDC_SEL),
+	.lcdsel_lit = HIWORD_UPDATE(RK3288_HDMI_LCDC_SEL, RK3288_HDMI_LCDC_SEL),
+};
+
+static const struct dw_hdmi_plat_data rk3288_hdmi_drv_data = {
+	.mode_valid = dw_hdmi_rockchip_mode_valid,
+	.mpll_cfg   = rockchip_mpll_cfg,
+	.cur_ctr    = rockchip_cur_ctr,
+	.phy_config = rockchip_phy_config,
+	.phy_data = &rk3288_chip_data,
+};
+
+static struct rockchip_hdmi_chip_data rk3399_chip_data = {
+	.lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
+	.lcdsel_big = HIWORD_UPDATE(0, RK3399_HDMI_LCDC_SEL),
+	.lcdsel_lit = HIWORD_UPDATE(RK3399_HDMI_LCDC_SEL, RK3399_HDMI_LCDC_SEL),
+};
+
+static const struct dw_hdmi_plat_data rk3399_hdmi_drv_data = {
 	.mode_valid = dw_hdmi_rockchip_mode_valid,
 	.mpll_cfg   = rockchip_mpll_cfg,
 	.cur_ctr    = rockchip_cur_ctr,
 	.phy_config = rockchip_phy_config,
+	.phy_data = &rk3399_chip_data,
 };
 
 static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
 	{ .compatible = "rockchip,rk3288-dw-hdmi",
-	  .data = &rockchip_hdmi_drv_data
+	  .data = &rk3288_hdmi_drv_data
+	},
+	{ .compatible = "rockchip,rk3399-dw-hdmi",
+	  .data = &rk3399_hdmi_drv_data
 	},
 	{},
 };
@@ -268,6 +312,7 @@  static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
 	match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node);
 	plat_data = match->data;
 	hdmi->dev = &pdev->dev;
+	hdmi->chip_data = plat_data->phy_data;
 	encoder = &hdmi->encoder;
 
 	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);