On Fri 2012-01-13 06:21:00, Dong Aisheng-B29396 wrote:
-----Original Message----- From: Mark Brown [mailto:broonie@opensource.wolfsonmicro.com] Sent: Friday, January 13, 2012 6:28 AM To: Julia Lawall; Fabio Estevam; Wolfram Sang; Dong Aisheng-B29396; Shawn Guo Cc: lrg@ti.com; alsa-devel@alsa-project.org Subject: Re: duplicated test in sound/soc/codecs/sgtl5000.c Importance: High
On Thu, Jan 12, 2012 at 10:13:24PM +0100, Julia Lawall wrote:
There is a duplicated test in the function sgtl5000_restore_regs in the file sound/soc/codecs/sgtl5000.c:
/* this regs depends on the others */ if (reg == SGTL5000_CHIP_ANA_POWER || reg == SGTL5000_CHIP_CLK_CTRL || reg == SGTL5000_CHIP_LINREG_CTRL || reg == SGTL5000_CHIP_LINE_OUT_CTRL || reg == SGTL5000_CHIP_CLK_CTRL) continue;I don't know if some constant other than SGTL5000_CHIP_CLK_CTRL should be tested, or if the second test should just be deleted.
Adding the people who've been working on the driver. Generally this is a good idea when reporting issues like this.
Cc Zhaoming.
Looking at the code, I guess it's a typo error and the second check should be SGTL5000_CHIP_REF_CTRL since it will restore it again.
Hi, Aisheng and Julia: Yes, a typo, I will send patch to correct it.
And Julia, the five regs list there since it should be restore in a particular order, the order is: 1. SGTL5000_CHIP_CLK_CTRL MCLK_FREQ bits (1:0) should be restore after SGTL5000_CHIP_ANA_POWER PLL bits set. 2. SGTL5000_CHIP_LINREG_CTRL should be set before SGTL5000_CHIP_ANA_POWER LINREG_D restored. 3. SGTL5000_CHIP_REF_CTRL controls Analog Ground Voltage, I prefer to resotre it after SGTL5000_CHIP_ANA_POWER restored. 4. for SGTL5000_CHIP_LINE_OUT_CTRL, I forget the real reason, Aisheng, can you help verify line-out if remove it?
Hi Mark, Since zhaoming leaved Freescale a few month ago, would you mind if I send a patch to add my name under MODULE_AHTOER as Co-maintainer for this driver and update Zhaoming's email address?
Regards Dong Aisheng