Message ID | 002201cd64ca$d5bbabb0$81330310$%han@samsung.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
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@samsung.com> 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); -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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);
This patch replaces udelay and mdelay with usleep_range to remove the busy loop waiting. Signed-off-by: Jingoo Han <jg1.han@samsung.com> --- drivers/video/exynos/exynos_dp_core.c | 14 +++++++------- drivers/video/exynos/exynos_dp_reg.c | 4 ++-- 2 files changed, 9 insertions(+), 9 deletions(-)