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From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
To: linux-media@vger.kernel.org
Cc: mchehab@kernel.org, dafna.hirschfeld@collabora.com,
	dafna3@gmail.com, tfiga@chromium.org, hverkuil@xs4all.nl,
	linux-rockchip@lists.infradead.org, helen.koike@collabora.com,
	laurent.pinchart@ideasonboard.com, sakari.ailus@linux.intel.com,
	kernel@collabora.com, ezequiel@collabora.com
Subject: [PATCH v3 10/12] media: staging: rkisp1: params: no need to lock default config
Date: Tue, 22 Sep 2020 13:34:00 +0200	[thread overview]
Message-ID: <20200922113402.12442-11-dafna.hirschfeld@collabora.com> (raw)
In-Reply-To: <20200922113402.12442-1-dafna.hirschfeld@collabora.com>

In the function 'rkisp1_params_config_parameter' the lock
is taken while applying the default config. But the lock
only needs to protect the buffers list and the 'is_streaming'
field, so move the locking to lock only what is needed.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
---
 drivers/staging/media/rkisp1/rkisp1-params.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkisp1/rkisp1-params.c b/drivers/staging/media/rkisp1/rkisp1-params.c
index 7aa76f032728..f0258b4258ed 100644
--- a/drivers/staging/media/rkisp1/rkisp1-params.c
+++ b/drivers/staging/media/rkisp1/rkisp1-params.c
@@ -1276,8 +1276,6 @@ static void rkisp1_params_config_parameter(struct rkisp1_params *params)
 {
 	struct rkisp1_cif_isp_hst_config hst = rkisp1_hst_params_default_config;
 
-	spin_lock(&params->config_lock);
-
 	rkisp1_awb_meas_config(params, &rkisp1_awb_params_default_config);
 	rkisp1_awb_meas_enable(params, &rkisp1_awb_params_default_config,
 			       true);
@@ -1302,6 +1300,8 @@ static void rkisp1_params_config_parameter(struct rkisp1_params *params)
 	else
 		rkisp1_csm_config(params, false);
 
+	spin_lock(&params->config_lock);
+
 	/* apply the first buffer if there is one already */
 	if (params->is_streaming)
 		rkisp1_params_apply_params_cfg(params, 0);
-- 
2.17.1


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  parent reply	other threads:[~2020-09-22 11:34 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 11:33 [PATCH v3 00/12] media: staging: rkisp1: various bug fixes Dafna Hirschfeld
2020-09-22 11:33 ` [PATCH v3 01/12] media: staging: rkisp1: params: upon stream stop, iterate a local list to return the buffers Dafna Hirschfeld
2020-09-25 19:08   ` Tomasz Figa
2020-09-22 11:33 ` [PATCH v3 02/12] media: staging: rkisp1: params: in the isr, return if buffer list is empty Dafna Hirschfeld
2020-09-22 11:33 ` [PATCH v3 03/12] media: staging: rkisp1: params: use the new effect value in cproc config Dafna Hirschfeld
2020-09-22 11:33 ` [PATCH v3 04/12] media: staging: rkisp1: params: avoid using buffer if params is not streaming Dafna Hirschfeld
2020-09-25 20:16   ` Tomasz Figa
2020-09-22 11:33 ` [PATCH v3 05/12] media: staging: rkisp1: params: set vb.sequence to be the isp's frame_sequence + 1 Dafna Hirschfeld
2020-09-22 11:33 ` [PATCH v3 06/12] media: staging: rkisp1: remove atomic operations for frame sequence Dafna Hirschfeld
2020-09-25 20:42   ` Tomasz Figa
2020-10-02  9:16     ` Dafna Hirschfeld
2020-10-02 15:30       ` Tomasz Figa
2020-11-06 14:43         ` Helen Koike
2020-11-10 10:40           ` Tomasz Figa
2020-09-22 11:33 ` [PATCH v3 07/12] media: staging: rkisp1: isp: add a warning and debugfs var for irq delay Dafna Hirschfeld
2020-09-22 11:33 ` [PATCH v3 08/12] media: staging: rkisp1: isp: don't enable signal RKISP1_CIF_ISP_FRAME_IN Dafna Hirschfeld
2020-09-22 11:33 ` [PATCH v3 09/12] media: staging: rkisp1: stats: protect write to 'is_streaming' in start_streaming cb Dafna Hirschfeld
2020-09-25 20:47   ` Tomasz Figa
2020-09-22 11:34 ` Dafna Hirschfeld [this message]
2020-09-22 11:34 ` [PATCH v3 11/12] media: staging: rkisp1: use the right variants of spin_lock Dafna Hirschfeld
2020-09-25 20:51   ` Tomasz Figa
2020-09-22 11:34 ` [PATCH v3 12/12] media: staging: rkisp1: cap: protect access to buf with the spin lock Dafna Hirschfeld
2020-09-25 20:53   ` Tomasz Figa
2020-09-27  9:43   ` Mauro Carvalho Chehab
2020-09-27  9:54     ` Dafna Hirschfeld
2020-09-27 11:05       ` Mauro Carvalho Chehab
2020-09-28 15:29         ` Dafna Hirschfeld

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