Re: [PATCH 06/11] [media] marvell-ccic: drop ctlr_reset()
From: Pavel Machek <hidden>
Date: 2018-11-05 09:11:41
Also in:
linux-media, lkml
On Mon 2018-11-05 08:30:49, Lubomir Rintel wrote:
This accesses the clock registers directly and thus is not too devicetree friendly. If it's actually needed it needs to be done differently.
Device-tree unfriendly is bad, but you still don't want to cause regression to people needing this. (Perhaps noone uses this, but...)
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Git blame says: 7c269f454 . Perhaps its authors should be Cced here, too? Pavel
quoted hunk ↗ jump to hunk
--- .../media/platform/marvell-ccic/mcam-core.c | 6 ----- .../media/platform/marvell-ccic/mcam-core.h | 1 - .../media/platform/marvell-ccic/mmp-driver.c | 23 ------------------- 3 files changed, 30 deletions(-)diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index d24e5b7a3bc5..1b879035948c 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c@@ -1154,12 +1154,6 @@ static void mcam_vb_stop_streaming(struct vb2_queue *vq) if (cam->state != S_STREAMING) return; mcam_ctlr_stop_dma(cam); - /* - * Reset the CCIC PHY after stopping streaming, - * otherwise, the CCIC may be unstable. - */ - if (cam->ctlr_reset) - cam->ctlr_reset(cam); /* * VB2 reclaims the buffers, so we need to forget * about them.diff --git a/drivers/media/platform/marvell-ccic/mcam-core.h b/drivers/media/platform/marvell-ccic/mcam-core.h index ad8955f9f0a1..f93f23faf364 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.h +++ b/drivers/media/platform/marvell-ccic/mcam-core.h@@ -137,7 +137,6 @@ struct mcam_camera { int (*plat_power_up) (struct mcam_camera *cam); void (*plat_power_down) (struct mcam_camera *cam); void (*calc_dphy) (struct mcam_camera *cam); - void (*ctlr_reset) (struct mcam_camera *cam); /* * Everything below here is private to the mcam core anddiff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c index 70a2833db0d1..92a79ad8a12c 100644 --- a/drivers/media/platform/marvell-ccic/mmp-driver.c +++ b/drivers/media/platform/marvell-ccic/mmp-driver.c@@ -183,28 +183,6 @@ static void mmpcam_power_down(struct mcam_camera *mcam) mcam_clk_disable(mcam); } -static void mcam_ctlr_reset(struct mcam_camera *mcam) -{ - unsigned long val; - struct mmp_camera *cam = mcam_to_cam(mcam); - - if (mcam->ccic_id) { - /* - * Using CCIC2 - */ - val = ioread32(cam->power_regs + REG_CCIC2_CRCR); - iowrite32(val & ~0x2, cam->power_regs + REG_CCIC2_CRCR); - iowrite32(val | 0x2, cam->power_regs + REG_CCIC2_CRCR); - } else { - /* - * Using CCIC1 - */ - val = ioread32(cam->power_regs + REG_CCIC_CRCR); - iowrite32(val & ~0x2, cam->power_regs + REG_CCIC_CRCR); - iowrite32(val | 0x2, cam->power_regs + REG_CCIC_CRCR); - } -} - /* * calc the dphy register values * There are three dphy registers being used.@@ -352,7 +330,6 @@ static int mmpcam_probe(struct platform_device *pdev) mcam = &cam->mcam; mcam->plat_power_up = mmpcam_power_up; mcam->plat_power_down = mmpcam_power_down; - mcam->ctlr_reset = mcam_ctlr_reset; mcam->calc_dphy = mmpcam_calc_dphy; mcam->dev = &pdev->dev; mcam->use_smbus = 0;
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