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Re: [PATCH v2 14/26] drm/rockchip: dw-mipi-dsi: fix escape clock rate

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Reviewed-by: Chris Zhong <zyw@rock-chips.com>

On 01/22/2017 12:31 AM, John Keeping wrote:
> Use the same calculation as the vendor kernel to derive the escape clock
> speed.
>
> Signed-off-by: John Keeping <john@metanate.com>
> ---
> Unchanged in v2
> ---
>   drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> index 290282e86d16..c2e0ba96e0a0 100644
> --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> @@ -710,11 +710,13 @@ static void dw_mipi_dsi_disable(struct dw_mipi_dsi *dsi)
>   
>   static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
>   {
> +	u32 esc_clk_division = (dsi->lane_mbps >> 3) / 20 + 1;
> +
>   	dsi_write(dsi, DSI_PWR_UP, RESET);
>   	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
>   		  | PHY_RSTZ | PHY_SHUTDOWNZ);
>   	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) |
> -		  TX_ESC_CLK_DIVIDSION(7));
> +		  TX_ESC_CLK_DIVIDSION(esc_clk_division));
>   }
>   
>   static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi,

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Thread

[PATCH v2 00/26] drm/rockchip: MIPI fixes & improvements John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
  [PATCH v2 12/26] drm/rockchip: dw-mipi-dsi: prepare panel after phy init John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
  [PATCH v2 25/26] drm/rockchip: dw-mipi-dsi: add reset control John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 25/26] drm/rockchip: dw-mipi-dsi: add reset control Chris Zhong <zyw@rock-chips.com> - 2017-01-23 07:20 +0100
  [PATCH v2 05/26] drm/rockchip: dw-mipi-dsi: fix command header writes John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
  [PATCH v2 07/26] drm/rockchip: dw-mipi-dsi: avoid out-of-bounds read on tx_buf John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 07/26] drm/rockchip: dw-mipi-dsi: avoid out-of-bounds  read on tx_buf Chris Zhong <zyw@rock-chips.com> - 2017-01-22 07:50 +0100
  [PATCH v2 18/26] drm/rockchip: dw-mipi-dsi: properly configure PHY timing John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 18/26] drm/rockchip: dw-mipi-dsi: properly configure  PHY timing Chris Zhong <zyw@rock-chips.com> - 2017-01-22 04:10 +0100
  [PATCH v2 20/26] drm/rockchip: dw-mipi-dsi: use specific poll helper John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 20/26] drm/rockchip: dw-mipi-dsi: use specific poll  helper Chris Zhong <zyw@rock-chips.com> - 2017-01-23 02:00 +0100
  [PATCH v2 08/26] drm/rockchip: dw-mipi-dsi: include bad value in error message John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 08/26] drm/rockchip: dw-mipi-dsi: include bad value in  error message Chris Zhong <zyw@rock-chips.com> - 2017-01-22 07:50 +0100
  [PATCH v2 04/26] drm/rockchip: dw-mipi-dsi: remove mode_set hook John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 04/26] drm/rockchip: dw-mipi-dsi: remove mode_set hook Chris Zhong <zyw@rock-chips.com> - 2017-01-22 07:20 +0100
  [PATCH v2 14/26] drm/rockchip: dw-mipi-dsi: fix escape clock rate John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 14/26] drm/rockchip: dw-mipi-dsi: fix escape clock rate Chris Zhong <zyw@rock-chips.com> - 2017-01-22 10:40 +0100
  [PATCH v2 17/26] drm/rockchip: dw-mipi-dsi: don't enable PHY PLL until it's configured John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 17/26] drm/rockchip: dw-mipi-dsi: don't enable PHY PLL  until it's configured Chris Zhong <zyw@rock-chips.com> - 2017-01-22 11:20 +0100
  [PATCH v2 15/26] drm/rockchip: dw-mipi-dsi: ensure PHY is reset John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 15/26] drm/rockchip: dw-mipi-dsi: ensure PHY is reset Chris Zhong <zyw@rock-chips.com> - 2017-01-22 10:40 +0100
  [PATCH v2 02/26] drm/rockchip: dw-mipi-dsi: rename commit hook to enable John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
  [PATCH v2 01/26] drm/rockchip: dw-mipi-dsi: don't configure hardware in mode_set for MIPI John Keeping <john@metanate.com> - 2017-01-21 17:40 +0100
    Re: [PATCH v2 01/26] drm/rockchip: dw-mipi-dsi: don't configure  hardware in mode_set for MIPI Chris Zhong <zyw@rock-chips.com> - 2017-01-22 05:00 +0100

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