Commit 893d6982 authored by Vinod Koul's avatar Vinod Koul Committed by Dmitry Baryshkov
Browse files

drm/msm/disp/dpu1: Add support for DSC in pingpong block 



In SDM845, DSC can be enabled by writing to pingpong block registers, so
add support for DSC in hw_pp

Reviewed-by: default avatarAbhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/480914/
Link: https://lore.kernel.org/r/20220406094031.1027376-5-vkoul@kernel.org


Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
parent c110cfd1

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c

+32 −0
Original line number Original line Diff line number Diff line
@@ -28,6 +28,9 @@ 
#define PP_FBC_MODE                     0x034

#define PP_FBC_MODE                     0x034

#define PP_FBC_BUDGET_CTL               0x038

#define PP_FBC_BUDGET_CTL               0x038

#define PP_FBC_LOSSY_MODE               0x03C

#define PP_FBC_LOSSY_MODE               0x03C

#define PP_DSC_MODE                     0x0a0

#define PP_DCE_DATA_IN_SWAP             0x0ac

#define PP_DCE_DATA_OUT_SWAP            0x0c8





#define PP_DITHER_EN			0x000

#define PP_DITHER_EN			0x000

#define PP_DITHER_BITDEPTH		0x004

#define PP_DITHER_BITDEPTH		0x004
@@ -245,6 +248,32 @@ static u32 dpu_hw_pp_get_line_count(struct dpu_hw_pingpong *pp) 
	return line;

	return line;

}

}





static int dpu_hw_pp_dsc_enable(struct dpu_hw_pingpong *pp)

{

	struct dpu_hw_blk_reg_map *c = &pp->hw;



	DPU_REG_WRITE(c, PP_DSC_MODE, 1);

	return 0;

}



static void dpu_hw_pp_dsc_disable(struct dpu_hw_pingpong *pp)

{

	struct dpu_hw_blk_reg_map *c = &pp->hw;



	DPU_REG_WRITE(c, PP_DSC_MODE, 0);

}



static int dpu_hw_pp_setup_dsc(struct dpu_hw_pingpong *pp)

{

	struct dpu_hw_blk_reg_map *pp_c = &pp->hw;

	int data;



	data = DPU_REG_READ(pp_c, PP_DCE_DATA_OUT_SWAP);

	data |= BIT(18); /* endian flip */

	DPU_REG_WRITE(pp_c, PP_DCE_DATA_OUT_SWAP, data);

	return 0;

}



static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,

static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,

				unsigned long features)

				unsigned long features)

{

{
@@ -256,6 +285,9 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong *c, 
	c->ops.get_autorefresh = dpu_hw_pp_get_autorefresh_config;

	c->ops.get_autorefresh = dpu_hw_pp_get_autorefresh_config;

	c->ops.poll_timeout_wr_ptr = dpu_hw_pp_poll_timeout_wr_ptr;

	c->ops.poll_timeout_wr_ptr = dpu_hw_pp_poll_timeout_wr_ptr;

	c->ops.get_line_count = dpu_hw_pp_get_line_count;

	c->ops.get_line_count = dpu_hw_pp_get_line_count;

	c->ops.setup_dsc = dpu_hw_pp_setup_dsc;

	c->ops.enable_dsc = dpu_hw_pp_dsc_enable;

	c->ops.disable_dsc = dpu_hw_pp_dsc_disable;





	if (test_bit(DPU_PINGPONG_DITHER, &features))

	if (test_bit(DPU_PINGPONG_DITHER, &features))

		c->ops.setup_dither = dpu_hw_pp_setup_dither;

		c->ops.setup_dither = dpu_hw_pp_setup_dither;

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h

+14 −0
Original line number Original line Diff line number Diff line
@@ -124,6 +124,20 @@ struct dpu_hw_pingpong_ops { 
	 */

	 */

	void (*setup_dither)(struct dpu_hw_pingpong *pp,

	void (*setup_dither)(struct dpu_hw_pingpong *pp,

			struct dpu_hw_dither_cfg *cfg);

			struct dpu_hw_dither_cfg *cfg);

	/**

	 * Enable DSC

	 */

	int (*enable_dsc)(struct dpu_hw_pingpong *pp);



	/**

	 * Disable DSC

	 */

	void (*disable_dsc)(struct dpu_hw_pingpong *pp);



	/**

	 * Setup DSC

	 */

	int (*setup_dsc)(struct dpu_hw_pingpong *pp);

};

};





struct dpu_hw_merge_3d;

struct dpu_hw_merge_3d;