diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2012-10-25 09:29:24 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-11-28 12:53:07 (GMT) |
| commit | b057c3c32229c0db914c03eefb2579d877612926 (patch) | |
| tree | 9b93bbe906d3c42d05ea49cc65ac1d1b06d3cea2 /drivers/media/platform/omap3isp/isp.c | |
| parent | e023a11342b6624cc019c8cecfc488882f0721f9 (diff) | |
| download | linux-fsl-qoriq-b057c3c32229c0db914c03eefb2579d877612926.tar.xz | |
[media] omap3isp: Prepare/unprepare clocks before/after enable/disable
Clock enable (disable) is split in two operations, prepare and enable
(disable and unprepare). Perform both when enabling/disabling the ISP
clocks.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/omap3isp/isp.c')
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index e8e724e..7da622e 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -1332,7 +1332,8 @@ void omap3isp_subclk_disable(struct isp_device *isp, * isp_enable_clocks - Enable ISP clocks * @isp: OMAP3 ISP device * - * Return 0 if successful, or clk_enable return value if any of tthem fails. + * Return 0 if successful, or clk_prepare_enable return value if any of them + * fails. */ static int isp_enable_clocks(struct isp_device *isp) { @@ -1354,9 +1355,9 @@ static int isp_enable_clocks(struct isp_device *isp) else divisor = 2; - r = clk_enable(isp->clock[ISP_CLK_CAM_ICK]); + r = clk_prepare_enable(isp->clock[ISP_CLK_CAM_ICK]); if (r) { - dev_err(isp->dev, "clk_enable cam_ick failed\n"); + dev_err(isp->dev, "failed to enable cam_ick clock\n"); goto out_clk_enable_ick; } r = clk_set_rate(isp->clock[ISP_CLK_DPLL4_M5_CK], @@ -1365,9 +1366,9 @@ static int isp_enable_clocks(struct isp_device *isp) dev_err(isp->dev, "clk_set_rate for dpll4_m5_ck failed\n"); goto out_clk_enable_mclk; } - r = clk_enable(isp->clock[ISP_CLK_CAM_MCLK]); + r = clk_prepare_enable(isp->clock[ISP_CLK_CAM_MCLK]); if (r) { - dev_err(isp->dev, "clk_enable cam_mclk failed\n"); + dev_err(isp->dev, "failed to enable cam_mclk clock\n"); goto out_clk_enable_mclk; } rate = clk_get_rate(isp->clock[ISP_CLK_CAM_MCLK]); @@ -1375,17 +1376,17 @@ static int isp_enable_clocks(struct isp_device *isp) dev_warn(isp->dev, "unexpected cam_mclk rate:\n" " expected : %d\n" " actual : %ld\n", CM_CAM_MCLK_HZ, rate); - r = clk_enable(isp->clock[ISP_CLK_CSI2_FCK]); + r = clk_prepare_enable(isp->clock[ISP_CLK_CSI2_FCK]); if (r) { - dev_err(isp->dev, "clk_enable csi2_fck failed\n"); + dev_err(isp->dev, "failed to enable csi2_fck clock\n"); goto out_clk_enable_csi2_fclk; } return 0; out_clk_enable_csi2_fclk: - clk_disable(isp->clock[ISP_CLK_CAM_MCLK]); + clk_disable_unprepare(isp->clock[ISP_CLK_CAM_MCLK]); out_clk_enable_mclk: - clk_disable(isp->clock[ISP_CLK_CAM_ICK]); + clk_disable_unprepare(isp->clock[ISP_CLK_CAM_ICK]); out_clk_enable_ick: return r; } @@ -1396,9 +1397,9 @@ out_clk_enable_ick: */ static void isp_disable_clocks(struct isp_device *isp) { - clk_disable(isp->clock[ISP_CLK_CAM_ICK]); - clk_disable(isp->clock[ISP_CLK_CAM_MCLK]); - clk_disable(isp->clock[ISP_CLK_CSI2_FCK]); + clk_disable_unprepare(isp->clock[ISP_CLK_CAM_ICK]); + clk_disable_unprepare(isp->clock[ISP_CLK_CAM_MCLK]); + clk_disable_unprepare(isp->clock[ISP_CLK_CSI2_FCK]); } static const char *isp_clocks[] = { |