[PATCH v2 14/26] drm/rockchip: dw-mipi-dsi: fix escape clock rate
From: Chris Zhong <hidden>
Date: 2017-01-22 09:37:51
Also in:
dri-devel, linux-rockchip, lkml
Reviewed-by: Chris Zhong <redacted> On 01/22/2017 12:31 AM, John Keeping wrote:
quoted hunk ↗ jump to hunk
Use the same calculation as the vendor kernel to derive the escape clock speed. Signed-off-by: John Keeping <redacted> --- 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,