On 07/18/2012 09:50 AM, Jingoo Han wrote:
> This patch replaces udelay and mdelay with usleep_range to remove
> the busy loop waiting.
>
> Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
Applied.
Thanks,
Florian Tobias Schandinat
> ---
> drivers/video/exynos/exynos_dp_core.c | 14 +++++++-------
> drivers/video/exynos/exynos_dp_reg.c | 4 ++--
> 2 files changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c
> index 9db7b9f..25907f4 100644
> --- a/drivers/video/exynos/exynos_dp_core.c
> +++ b/drivers/video/exynos/exynos_dp_core.c
> @@ -47,7 +47,7 @@ static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
>
> exynos_dp_init_hpd(dp);
>
> - udelay(200);
> + usleep_range(200, 210);
>
> while (exynos_dp_get_plug_in_status(dp) != 0) {
> timeout_loop++;
> @@ -55,7 +55,7 @@ static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
> dev_err(dp->dev, "failed to get hpd plug status\n");
> return -ETIMEDOUT;
> }
> - udelay(10);
> + usleep_range(10, 11);
> }
>
> return 0;
> @@ -486,7 +486,7 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
> u8 pre_emphasis;
> u8 training_lane;
>
> - udelay(100);
> + usleep_range(100, 101);
>
> exynos_dp_read_bytes_from_dpcd(dp, DPCD_ADDR_LANE0_1_STATUS,
> 6, link_status);
> @@ -571,7 +571,7 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
>
> u8 adjust_request[2];
>
> - udelay(400);
> + usleep_range(400, 401);
>
> exynos_dp_read_bytes_from_dpcd(dp, DPCD_ADDR_LANE0_1_STATUS,
> 6, link_status);
> @@ -739,7 +739,7 @@ static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
> if (retval == 0)
> break;
>
> - udelay(100);
> + usleep_range(100, 110);
> }
>
> return retval;
> @@ -773,7 +773,7 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp,
> return -ETIMEDOUT;
> }
>
> - udelay(1);
> + usleep_range(1, 2);
> }
>
> /* Set to use the register calculated M/N video */
> @@ -807,7 +807,7 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp,
> return -ETIMEDOUT;
> }
>
> - mdelay(1);
> + usleep_range(1000, 1001);
> }
>
> if (retval != 0)
> diff --git a/drivers/video/exynos/exynos_dp_reg.c b/drivers/video/exynos/exynos_dp_reg.c
> index 6ce76d5..ce401c8 100644
> --- a/drivers/video/exynos/exynos_dp_reg.c
> +++ b/drivers/video/exynos/exynos_dp_reg.c
> @@ -122,7 +122,7 @@ void exynos_dp_reset(struct exynos_dp_device *dp)
> LS_CLK_DOMAIN_FUNC_EN_N;
> writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
>
> - udelay(20);
> + usleep_range(20, 30);
>
> exynos_dp_lane_swap(dp, 0);
>
> @@ -988,7 +988,7 @@ void exynos_dp_reset_macro(struct exynos_dp_device *dp)
> writel(reg, dp->reg_base + EXYNOS_DP_PHY_TEST);
>
> /* 10 us is the minimum reset time. */
> - udelay(10);
> + usleep_range(10, 20);
>
> reg &= ~MACRO_RST;
> writel(reg, dp->reg_base + EXYNOS_DP_PHY_TEST);
--
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