On 2017年02月05日 11:42, Chris Zhong wrote:
On 02/02/2017 02:12 AM, Sean Paul wrote:
On Tue, Jan 24, 2017 at 10:27:27AM +0800, Chris Zhong wrote:
Hi Sean
On 01/24/2017 01:48 AM, Sean Paul wrote:
On Fri, Jan 20, 2017 at 06:10:49PM +0800, Chris Zhong wrote:
The MIPI DSI do not need check the validity of resolution, the max resolution should depend VOP. Hence, remove rk3288_mipi_dsi_mode_valid here.
Does vop actually enforce this, though? I see that mode_config.max_width is 4096, but there is no bounds checking in mode_fixup().
The connector is currently rejecting everything greater than 2047. So I think you're going to regress behavior here.
Sean
The mipi controller has not this width limit, it depend the VOP, such as RK3399, VOP_LIT only support 2560, but VOP_BIG support 4K. So this driver should check the width here.
I don't see anything in the vop driver that rejects large modes for little vop. So, while I agree the check shouldn't be here, you should move it to where it should be instead of removing it entirely.
Sean
drm_mode_validate_size will check the dev->mode_config.max_width and dev->mode_config.max_height, these 2 value come from rockchip_drm_mode_config_init, currently, they are both 4096. So you are right, drm driver does not distinguish between vop lit and big.
I think Mark Yao already have a local solution, and he will post it soon.
Hi
See follow patches, support mode valid with vop callback.
[0] https://patchwork.kernel.org/patch/9555943/ [1] https://patchwork.kernel.org/patch/9555945/
Signed-off-by: Chris Zhong zyw@rock-chips.com
Changes in v3: None
drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 39
1 file changed, 39 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index a93ce97..6f0e252 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -278,8 +278,6 @@ struct dw_mipi_dsi_plat_data { u32 grf_dsi0_mode; u32 grf_dsi0_mode_reg; unsigned int max_data_lanes;
- enum drm_mode_status (*mode_valid)(struct drm_connector
*connector,
struct drm_display_mode *mode);@@ -1081,23 +1079,8 @@ static int dw_mipi_dsi_connector_get_modes(struct drm_connector *connector) return drm_panel_get_modes(dsi->panel); } -static enum drm_mode_status dw_mipi_dsi_mode_valid(
struct drm_connector *connector,struct drm_display_mode *mode)-{
- struct dw_mipi_dsi *dsi = con_to_dsi(connector);
- enum drm_mode_status mode_status = MODE_OK;
- if (dsi->pdata->mode_valid)
mode_status = dsi->pdata->mode_valid(connector, mode);- return mode_status;
-}
- static struct drm_connector_helper_funcs
dw_mipi_dsi_connector_helper_funcs = { .get_modes = dw_mipi_dsi_connector_get_modes,
- .mode_valid = dw_mipi_dsi_mode_valid, }; static void dw_mipi_dsi_drm_connector_destroy(struct
drm_connector *connector) @@ -1168,33 +1151,11 @@ static int rockchip_mipi_parse_dt(struct dw_mipi_dsi *dsi) return 0; } -static enum drm_mode_status rk3288_mipi_dsi_mode_valid(
struct drm_connector *connector,struct drm_display_mode *mode)-{
- /*
* The VID_PKT_SIZE field in the DSI_VID_PKT_CFG* register is 11-bit.*/- if (mode->hdisplay > 0x7ff)
return MODE_BAD_HVALUE;- /*
* The V_ACTIVE_LINES field in the DSI_VTIMING_CFG* register is 11-bit.*/- if (mode->vdisplay > 0x7ff)
return MODE_BAD_VVALUE;- return MODE_OK;
-}
- static struct dw_mipi_dsi_plat_data rk3288_mipi_dsi_drv_data = { .dsi0_en_bit = RK3288_DSI0_SEL_VOP_LIT, .dsi1_en_bit = RK3288_DSI1_SEL_VOP_LIT, .grf_switch_reg = RK3288_GRF_SOC_CON6, .max_data_lanes = 4,
- .mode_valid = rk3288_mipi_dsi_mode_valid, }; static struct dw_mipi_dsi_plat_data rk3399_mipi_dsi_drv_data = {
-- 2.6.3
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