Re: [PATCH v2 1/5] drm/rockchip: vop: get rid of register init table

[Mark yao <mark.yao@rock-chips.com>]

On 2017年07月13日 00:47, Sean Paul wrote:
> On Wed, Jul 12, 2017 at 10:03:27AM +0800, Mark Yao wrote:
>> Register init table use un-document define, it is unreadable,
>> And sometimes we only want to update tiny bits, init table
>> method is not friendly, it's diffcult to reuse for difference
>> chips.
> While I'm happy to see the init_table removed, it seems like the new code is not
> equivalent to the old (ie: some register writes have been dropped). How did you
> ensure that you're not breaking existing boards that depend on the deleted register
> initialization?
>
> Sean

All the existing boards works fine on my internal kernel board with the init_table removed,
We had tested all the existing boards, so it's no problem to removed init_table

>
>> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
>> ---
>>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c |  6 ++--
>>   drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 10 ++-----
>>   drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 43 +++--------------------------
>>   3 files changed, 10 insertions(+), 49 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
>> index 45589d6..7a5f809 100644
>> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
>> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
>> @@ -1393,7 +1393,6 @@ static void vop_destroy_crtc(struct vop *vop)
>>   static int vop_initial(struct vop *vop)
>>   {
>>   	const struct vop_data *vop_data = vop->data;
>> -	const struct vop_reg_data *init_table = vop_data->init_table;
>>   	struct reset_control *ahb_rst;
>>   	int i, ret;
>>   
>> @@ -1453,13 +1452,14 @@ static int vop_initial(struct vop *vop)
>>   
>>   	memcpy(vop->regsbak, vop->regs, vop->len);
>>   
>> -	for (i = 0; i < vop_data->table_size; i++)
>> -		vop_writel(vop, init_table[i].offset, init_table[i].value);
>> +	VOP_CTRL_SET(vop, global_regdone_en, 1);
>> +	VOP_CTRL_SET(vop, dsp_blank, 0);
>>   
>>   	for (i = 0; i < vop_data->win_size; i++) {
>>   		const struct vop_win_data *win = &vop_data->win[i];
>>   
>>   		VOP_WIN_SET(vop, win, enable, 0);
>> +		VOP_WIN_SET(vop, win, gate, 1);
>>   	}
>>   
>>   	vop_cfg_done(vop);
>> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
>> index 9979fd0..084d3b2 100644
>> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
>> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
>> @@ -24,11 +24,6 @@ enum vop_data_format {
>>   	VOP_FMT_YUV444SP,
>>   };
>>   
>> -struct vop_reg_data {
>> -	uint32_t offset;
>> -	uint32_t value;
>> -};
>> -
>>   struct vop_reg {
>>   	uint32_t offset;
>>   	uint32_t shift;
>> @@ -46,6 +41,7 @@ struct vop_ctrl {
>>   	struct vop_reg hdmi_en;
>>   	struct vop_reg mipi_en;
>>   	struct vop_reg dp_en;
>> +	struct vop_reg dsp_blank;
>>   	struct vop_reg out_mode;
>>   	struct vop_reg dither_down;
>>   	struct vop_reg dither_up;
>> @@ -65,6 +61,7 @@ struct vop_ctrl {
>>   
>>   	struct vop_reg line_flag_num[2];
>>   
>> +	struct vop_reg global_regdone_en;
>>   	struct vop_reg cfg_done;
>>   };
>>   
>> @@ -115,6 +112,7 @@ struct vop_win_phy {
>>   	uint32_t nformats;
>>   
>>   	struct vop_reg enable;
>> +	struct vop_reg gate;
>>   	struct vop_reg format;
>>   	struct vop_reg rb_swap;
>>   	struct vop_reg act_info;
>> @@ -136,8 +134,6 @@ struct vop_win_data {
>>   };
>>   
>>   struct vop_data {
>> -	const struct vop_reg_data *init_table;
>> -	unsigned int table_size;
>>   	const struct vop_ctrl *ctrl;
>>   	const struct vop_intr *intr;
>>   	const struct vop_win_data *win;
>> diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
>> index bafd698..00e9d79 100644
>> --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
>> +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
>> @@ -127,13 +127,7 @@
>>   	.cfg_done = VOP_REG(RK3036_REG_CFG_DONE, 0x1, 0),
>>   };
>>   
>> -static const struct vop_reg_data rk3036_vop_init_reg_table[] = {
>> -	{RK3036_DSP_CTRL1, 0x00000000},
>> -};
>> -
>>   static const struct vop_data rk3036_vop = {
>> -	.init_table = rk3036_vop_init_reg_table,
>> -	.table_size = ARRAY_SIZE(rk3036_vop_init_reg_table),
>>   	.ctrl = &rk3036_ctrl_data,
>>   	.intr = &rk3036_intr,
>>   	.win = rk3036_vop_win_data,
>> @@ -193,7 +187,8 @@
>>   static const struct vop_win_phy rk3288_win23_data = {
>>   	.data_formats = formats_win_lite,
>>   	.nformats = ARRAY_SIZE(formats_win_lite),
>> -	.enable = VOP_REG(RK3288_WIN2_CTRL0, 0x1, 0),
>> +	.enable = VOP_REG(RK3288_WIN2_CTRL0, 0x1, 4),
>> +	.gate = VOP_REG(RK3288_WIN2_CTRL0, 0x1, 0),
>>   	.format = VOP_REG(RK3288_WIN2_CTRL0, 0x7, 1),
>>   	.rb_swap = VOP_REG(RK3288_WIN2_CTRL0, 0x1, 12),
>>   	.dsp_info = VOP_REG(RK3288_WIN2_DSP_INFO0, 0x0fff0fff, 0),
>> @@ -215,6 +210,7 @@
>>   	.dither_down = VOP_REG(RK3288_DSP_CTRL1, 0xf, 1),
>>   	.dither_up = VOP_REG(RK3288_DSP_CTRL1, 0x1, 6),
>>   	.data_blank = VOP_REG(RK3288_DSP_CTRL0, 0x1, 19),
>> +	.dsp_blank = VOP_REG(RK3288_DSP_CTRL0, 0x3, 18),
>>   	.out_mode = VOP_REG(RK3288_DSP_CTRL0, 0xf, 0),
>>   	.pin_pol = VOP_REG(RK3288_DSP_CTRL0, 0xf, 4),
>>   	.htotal_pw = VOP_REG(RK3288_DSP_HTOTAL_HS_END, 0x1fff1fff, 0),
>> @@ -224,22 +220,10 @@
>>   	.hpost_st_end = VOP_REG(RK3288_POST_DSP_HACT_INFO, 0x1fff1fff, 0),
>>   	.vpost_st_end = VOP_REG(RK3288_POST_DSP_VACT_INFO, 0x1fff1fff, 0),
>>   	.line_flag_num[0] = VOP_REG(RK3288_INTR_CTRL0, 0x1fff, 12),
>> +	.global_regdone_en = VOP_REG(RK3288_SYS_CTRL, 0x1, 11),
>>   	.cfg_done = VOP_REG(RK3288_REG_CFG_DONE, 0x1, 0),
>>   };
>>   
>> -static const struct vop_reg_data rk3288_init_reg_table[] = {
>> -	{RK3288_SYS_CTRL, 0x00c00000},
>> -	{RK3288_DSP_CTRL0, 0x00000000},
>> -	{RK3288_WIN0_CTRL0, 0x00000080},
>> -	{RK3288_WIN1_CTRL0, 0x00000080},
>> -	/* TODO: Win2/3 support multiple area function, but we haven't found
>> -	 * a suitable way to use it yet, so let's just use them as other windows
>> -	 * with only area 0 enabled.
>> -	 */
>> -	{RK3288_WIN2_CTRL0, 0x00000010},
>> -	{RK3288_WIN3_CTRL0, 0x00000010},
>> -};
>> -
>>   /*
>>    * Note: rk3288 has a dedicated 'cursor' window, however, that window requires
>>    * special support to get alpha blending working.  For now, just use overlay
>> @@ -273,8 +257,6 @@
>>   };
>>   
>>   static const struct vop_data rk3288_vop = {
>> -	.init_table = rk3288_init_reg_table,
>> -	.table_size = ARRAY_SIZE(rk3288_init_reg_table),
>>   	.feature = VOP_FEATURE_OUTPUT_RGB10,
>>   	.intr = &rk3288_vop_intr,
>>   	.ctrl = &rk3288_ctrl_data,
>> @@ -328,22 +310,7 @@
>>   	.clear = VOP_REG_MASK(RK3399_INTR_CLEAR0, 0xffff, 0),
>>   };
>>   
>> -static const struct vop_reg_data rk3399_init_reg_table[] = {
>> -	{RK3399_SYS_CTRL, 0x2000f800},
>> -	{RK3399_DSP_CTRL0, 0x00000000},
>> -	{RK3399_WIN0_CTRL0, 0x00000080},
>> -	{RK3399_WIN1_CTRL0, 0x00000080},
>> -	/* TODO: Win2/3 support multiple area function, but we haven't found
>> -	 * a suitable way to use it yet, so let's just use them as other windows
>> -	 * with only area 0 enabled.
>> -	 */
>> -	{RK3399_WIN2_CTRL0, 0x00000010},
>> -	{RK3399_WIN3_CTRL0, 0x00000010},
>> -};
>> -
>>   static const struct vop_data rk3399_vop_big = {
>> -	.init_table = rk3399_init_reg_table,
>> -	.table_size = ARRAY_SIZE(rk3399_init_reg_table),
>>   	.feature = VOP_FEATURE_OUTPUT_RGB10,
>>   	.intr = &rk3399_vop_intr,
>>   	.ctrl = &rk3399_ctrl_data,
>> @@ -362,8 +329,6 @@
>>   };
>>   
>>   static const struct vop_data rk3399_vop_lit = {
>> -	.init_table = rk3399_init_reg_table,
>> -	.table_size = ARRAY_SIZE(rk3399_init_reg_table),
>>   	.intr = &rk3399_vop_intr,
>>   	.ctrl = &rk3399_ctrl_data,
>>   	/*
>> -- 
>> 1.9.1
>>
>>
>> _______________________________________________
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>> dri-devel@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel


-- 
Ｍark Yao