Reviewed-by: Chris Zhong <zyw at 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 at 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,
