diff options
| author | David S. Miller <davem@davemloft.net> | 2017-06-15 11:31:37 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-15 11:59:32 -0400 |
| commit | 0ddead90b223faae475f3296a50bf574b7f7c69a (patch) | |
| tree | e729c7fcdc7e3697f7fae2f3028ed0d11931c425 /drivers/gpu/drm/mediatek/mtk_dsi.c | |
| parent | f7aec129a356ad049edddcb7e77b04a474fcf41f (diff) | |
| parent | a090bd4ff8387c409732a8e059fbf264ea0bdd56 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflicts were two cases of overlapping changes in
batman-adv and the qed driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dsi.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 808b995a990f..b5cc6e12334c 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -19,6 +19,7 @@ #include <drm/drm_of.h> #include <linux/clk.h> #include <linux/component.h> +#include <linux/iopoll.h> #include <linux/irq.h> #include <linux/of.h> #include <linux/of_platform.h> @@ -900,16 +901,12 @@ static int mtk_dsi_host_detach(struct mipi_dsi_host *host, static void mtk_dsi_wait_for_idle(struct mtk_dsi *dsi) { - u32 timeout_ms = 500000; /* total 1s ~ 2s timeout */ - - while (timeout_ms--) { - if (!(readl(dsi->regs + DSI_INTSTA) & DSI_BUSY)) - break; - - usleep_range(2, 4); - } + int ret; + u32 val; - if (timeout_ms == 0) { + ret = readl_poll_timeout(dsi->regs + DSI_INTSTA, val, !(val & DSI_BUSY), + 4, 2000000); + if (ret) { DRM_WARN("polling dsi wait not busy timeout!\n"); mtk_dsi_enable(dsi); |