eDP controller need to declare which vop provide the video source, and it's defined in GRF registers.
But different chips have different GRF register address, so we need to create a device data to declare the GRF messages for each chips.
Signed-off-by: Yakir Yang ykk@rock-chips.com Acked-by: Mark Yao mark.yao@rock-chips.com Reviewed-by: Tomasz Figa tfiga@chromium.org --- Changes in v4: - Assigned the GRF setting magic numbers to a #define that corresponds to a TRM name. (Sean & Heiko) - Pass the chip type to device type directly. (Sean) - Add reviewed flag from Tomasz.
Changes in v3: - Write a kerneldoc-style comment explaining the chips data fields (Tomasz, reviewed at Google Gerrit) [https://chromium-review.googlesource.com/#/c/346313/10/drivers/gpu/drm/rockc...] - Drop the '.lcdcsel_mask' number in chips data field (Tomasz, reviewed at Google Gerrit) [https://chromium-review.googlesource.com/#/c/346313/10/drivers/gpu/drm/rockc...] - Add acked flag from Mark.
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 49 ++++++++++++++++++++----- 1 file changed, 39 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index c120172..0a30931 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -14,6 +14,7 @@
#include <linux/component.h> #include <linux/mfd/syscon.h> +#include <linux/of_device.h> #include <linux/of_graph.h> #include <linux/regmap.h> #include <linux/reset.h> @@ -33,13 +34,26 @@ #include "rockchip_drm_drv.h" #include "rockchip_drm_vop.h"
+#define RK3288_GRF_SOC_CON6 0x25c +#define RK3288_EDP_LCDC_SEL BIT(5) + +#define HIWORD_UPDATE(val, mask) (val | (mask) << 16) + #define to_dp(nm) container_of(nm, struct rockchip_dp_device, nm)
-/* dp grf register offset */ -#define GRF_SOC_CON6 0x025c -#define GRF_EDP_LCD_SEL_MASK BIT(5) -#define GRF_EDP_SEL_VOP_LIT BIT(5) -#define GRF_EDP_SEL_VOP_BIG 0 +/** + * struct rockchip_dp_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 eDP + * @lcdsel_lit: reg value of selecting vop little for eDP + * @chip_type: specific chip type + */ +struct rockchip_dp_chip_data { + u32 lcdsel_grf_reg; + u32 lcdsel_big; + u32 lcdsel_lit; + u32 chip_type; +};
struct rockchip_dp_device { struct drm_device *drm_dev; @@ -51,6 +65,8 @@ struct rockchip_dp_device { struct regmap *grf; struct reset_control *rst;
+ const struct rockchip_dp_chip_data *data; + struct analogix_dp_plat_data plat_data; };
@@ -119,13 +135,13 @@ static void rockchip_dp_drm_encoder_enable(struct drm_encoder *encoder) return;
if (ret) - val = GRF_EDP_SEL_VOP_LIT | (GRF_EDP_LCD_SEL_MASK << 16); + val = dp->data->lcdsel_lit; else - val = GRF_EDP_SEL_VOP_BIG | (GRF_EDP_LCD_SEL_MASK << 16); + val = dp->data->lcdsel_big;
dev_dbg(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");
- ret = regmap_write(dp->grf, GRF_SOC_CON6, val); + ret = regmap_write(dp->grf, dp->data->lcdsel_grf_reg, val); if (ret != 0) { dev_err(dp->dev, "Could not write to GRF: %d\n", ret); return; @@ -246,6 +262,7 @@ static int rockchip_dp_bind(struct device *dev, struct device *master, void *data) { struct rockchip_dp_device *dp = dev_get_drvdata(dev); + const struct rockchip_dp_chip_data *dp_data; struct drm_device *drm_dev = data; int ret;
@@ -256,10 +273,15 @@ static int rockchip_dp_bind(struct device *dev, struct device *master, */ dev_set_drvdata(dev, NULL);
+ dp_data = of_device_get_match_data(dev); + if (!dp_data) + return -ENODEV; + ret = rockchip_dp_init(dp); if (ret < 0) return ret;
+ dp->data = dp_data; dp->drm_dev = drm_dev;
ret = rockchip_dp_drm_create_encoder(dp); @@ -270,7 +292,7 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
dp->plat_data.encoder = &dp->encoder;
- dp->plat_data.dev_type = RK3288_DP; + dp->plat_data.dev_type = dp->data->chip_type; dp->plat_data.power_on = rockchip_dp_poweron; dp->plat_data.power_off = rockchip_dp_powerdown;
@@ -356,8 +378,15 @@ static const struct dev_pm_ops rockchip_dp_pm_ops = { #endif };
+static const struct rockchip_dp_chip_data rk3288_dp = { + .lcdsel_grf_reg = RK3288_GRF_SOC_CON6, + .lcdsel_big = HIWORD_UPDATE(0, RK3288_EDP_LCDC_SEL), + .lcdsel_lit = HIWORD_UPDATE(RK3288_EDP_LCDC_SEL, RK3288_EDP_LCDC_SEL), + .chip_type = RK3288_DP, +}; + static const struct of_device_id rockchip_dp_dt_ids[] = { - {.compatible = "rockchip,rk3288-dp",}, + {.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp }, {} }; MODULE_DEVICE_TABLE(of, rockchip_dp_dt_ids);