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From: Przemyslaw Marczak <p.marczak@samsung.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 08/12] i2c: s3c24x0: reduce transmission status timeout
Date: Tue, 27 Jan 2015 13:36:35 +0100	[thread overview]
Message-ID: <1422362199-32669-9-git-send-email-p.marczak@samsung.com> (raw)
In-Reply-To: <1422362199-32669-1-git-send-email-p.marczak@samsung.com>

If no device is connected to I2C bus, the i2c probe command
can take a lot of time for probe each address. This commit
reduces the busy timeout to 10ms for standard and high speed
modes. This doesn't break the transmission an also allow for
properly probe the devices.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>

Changes v3:
- new commit, after split the next one
---
 drivers/i2c/s3c24x0_i2c.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c
index fd328f0..3129c7f 100644
--- a/drivers/i2c/s3c24x0_i2c.c
+++ b/drivers/i2c/s3c24x0_i2c.c
@@ -111,9 +111,9 @@
 #define I2C_START_STOP	0x20	/* START / STOP */
 #define I2C_TXRX_ENA	0x10	/* I2C Tx/Rx enable */
 
-#define I2C_TIMEOUT_MS 1000		/* 1 second */
+#define I2C_TIMEOUT_MS 10		/* 10 ms */
 
-#define	HSI2C_TIMEOUT_US 100000 /* 100 ms, finer granularity */
+#define	HSI2C_TIMEOUT_US 10000 /* 10 ms, finer granularity */
 
 
 /* To support VCMA9 boards and other who dont define max_i2c_num */
-- 
1.9.1

  parent reply	other threads:[~2015-01-27 12:36 UTC|newest]

Thread overview: 88+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-08 11:28 [U-Boot] [PATCH 00/18] Exynos: move i2c driver to dm api Przemyslaw Marczak
2015-01-08 11:33 ` [U-Boot] [PATCH 01/18] arndale: config: disable max77686 support Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 02/18] exynos5250: config: disable max77686 driver Przemyslaw Marczak
2015-01-27  3:13     ` Simon Glass
2015-01-08 11:33   ` [U-Boot] [PATCH 03/18] smdk5250: config: enable max77686 driver support Przemyslaw Marczak
2015-01-27  3:13     ` Simon Glass
2015-01-08 11:33   ` [U-Boot] [PATCH 04/18] exynos4: dts: add missing i2c properties Przemyslaw Marczak
2015-01-27  3:13     ` Simon Glass
2015-01-08 11:33   ` [U-Boot] [PATCH 05/18] arndale: dts: add missing i2c aliases Przemyslaw Marczak
2015-01-27  3:13     ` Simon Glass
2015-01-08 11:33   ` [U-Boot] [PATCH 06/18] exynos5: pinmux: check flag for i2c config Przemyslaw Marczak
2015-01-27  3:13     ` Simon Glass
2015-01-08 11:33   ` [U-Boot] [PATCH 07/18] dm: i2c: s3c24x0: adjust to dm-i2c api Przemyslaw Marczak
2015-01-09  6:31     ` Heiko Schocher
2015-01-09  8:57       ` Przemyslaw Marczak
2015-01-20  3:18         ` Simon Glass
2015-01-23 15:15           ` Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 08/18] exynos5: config: prepare for dm i2c support Przemyslaw Marczak
2015-01-08 14:11     ` Minkyu Kang
2015-01-09  6:37     ` Heiko Schocher
2015-01-09 20:51       ` Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 09/18] exynos5250: config: temporary disable sound for dm i2c Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 10/18] arndale: config: temporary disable pmic " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 11/18] exynos5-dt: " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 12/18] snow: config: temporary disable cros ec i2c " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 13/18] smdk5250: config: temporary disable pmic " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 14/18] smdk5420: board: fix build warning for testing " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 15/18] peach-pi: config: temporary disable video parade for " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 16/18] peach-pit: " Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 17/18] trats2: board: cleanup power init code Przemyslaw Marczak
2015-01-08 11:33   ` [U-Boot] [PATCH 18/18] trats2: config: disable i2c peripherals if testing dm i2c Przemyslaw Marczak
2015-01-08 14:11     ` Minkyu Kang
2015-01-09  8:49       ` Przemyslaw Marczak
2015-01-27  3:13   ` [U-Boot] [PATCH 01/18] arndale: config: disable max77686 support Simon Glass
2015-01-29 17:33     ` Simon Glass
2015-01-08 12:13 ` [U-Boot] [PATCH 00/18] Exynos: move i2c driver to dm api Przemyslaw Marczak
2015-01-26 15:21 ` [U-Boot] [PATCH v2 00/10] exynos: enable dm i2c Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 01/10] arndale: config: disable max77686 support Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 02/10] exynos5250: config: disable max77686 driver Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 03/10] smdk5250: config: enable max77686 driver support Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 04/10] exynos4: dts: add missing i2c properties Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 05/10] arndale: dts: add missing i2c aliases Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 06/10] exynos5: pinmux: check flag for i2c config Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 07/10] dm: i2c: s3c24x0: adjust to dm-i2c api Przemyslaw Marczak
2015-01-27  3:13     ` Simon Glass
2015-01-27  8:01       ` Przemyslaw Marczak
2015-01-26 15:21   ` [U-Boot] [PATCH v2 08/10] odroid u3: dts: add missing i2c aliases Przemyslaw Marczak
2015-01-27  3:14     ` Simon Glass
2015-01-26 15:21   ` [U-Boot] [PATCH v2 09/10] odroid u3: enable dm i2c support Przemyslaw Marczak
2015-01-27  3:14     ` Simon Glass
2015-01-26 15:21   ` [U-Boot] [PATCH v2 10/10] exynos5: enable dm i2c Przemyslaw Marczak
2015-01-27  3:14     ` Simon Glass
2015-01-26 15:32   ` [U-Boot] [PATCH v2 00/10] exynos: " Przemyslaw Marczak
2015-01-27 12:36   ` [U-Boot] [PATCH v3 00/12] " Przemyslaw Marczak
2015-01-27 12:36     ` [U-Boot] [PATCH v3 01/12] dm: i2c-uclass-compat: fix missed argument Przemyslaw Marczak
2015-01-27 15:38       ` Simon Glass
2015-01-29 17:32         ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 02/12] arndale: config: disable max77686 support Przemyslaw Marczak
2015-01-27 12:36     ` [U-Boot] [PATCH v3 03/12] exynos5250: config: disable max77686 driver Przemyslaw Marczak
2015-01-29 17:33       ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 04/12] smdk5250: config: enable max77686 driver support Przemyslaw Marczak
2015-01-29 17:33       ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 05/12] exynos4: dts: add missing i2c properties Przemyslaw Marczak
2015-01-29 17:33       ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 06/12] arndale: dts: add missing i2c aliases Przemyslaw Marczak
2015-01-29 17:34       ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 07/12] exynos5: pinmux: check flag for i2c config Przemyslaw Marczak
2015-01-27 15:38       ` Simon Glass
2015-01-29 17:34         ` Simon Glass
2015-01-27 12:36     ` Przemyslaw Marczak [this message]
2015-01-27 15:38       ` [U-Boot] [PATCH v3 08/12] i2c: s3c24x0: reduce transmission status timeout Simon Glass
2015-01-27 15:44         ` Przemyslaw Marczak
2015-02-06 20:48           ` Simon Glass
2015-02-06 21:47             ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 09/12] dm: i2c: s3c24x0: adjust to dm-i2c api Przemyslaw Marczak
2015-01-27 15:38       ` Simon Glass
2015-01-29 17:34         ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 10/12] odroid u3: dts: add missing i2c aliases Przemyslaw Marczak
2015-01-29 17:34       ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 11/12] odroid u3: enable dm i2c support Przemyslaw Marczak
2015-01-29 17:34       ` Simon Glass
2015-01-27 12:36     ` [U-Boot] [PATCH v3 12/12] exynos5: enable dm i2c Przemyslaw Marczak
2015-01-29 17:35       ` Simon Glass
2015-01-27 12:40     ` [U-Boot] [PATCH v3 00/12] exynos: " Przemyslaw Marczak
2015-01-27 15:38     ` Simon Glass
2015-01-29  0:00       ` Simon Glass
2015-01-29  1:58       ` Minkyu Kang
2015-01-29  2:02         ` Simon Glass

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