The patch
ASoC: Intel: sst: Simplify is_byt_cr()
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
From b97205ef95efddee018061dfee14c995be08dde3 Mon Sep 17 00:00:00 2001
From: Stephan Gerhold stephan@gerhold.net Date: Wed, 2 Jan 2019 20:39:03 +0100 Subject: [PATCH] ASoC: Intel: sst: Simplify is_byt_cr()
is_byt_cr() and its usage can be simplified by returning the bool directly, instead of through a pointer. This works because the return value is just treated as bytcr = false and is not used otherwise.
This patch also removes the extra check of IS_ENABLED(CONFIG_IOSF_MBI) in favor of checking iosf_mbi_available() directly. The header already takes care of returning false if the config option is not enabled.
No functional change.
Signed-off-by: Stephan Gerhold stephan@gerhold.net Acked-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/atom/sst/sst_acpi.c | 33 ++++++++++++----------------- 1 file changed, 14 insertions(+), 19 deletions(-)
diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c index 3a95ebbfc45d..9eaac450f864 100644 --- a/sound/soc/intel/atom/sst/sst_acpi.c +++ b/sound/soc/intel/atom/sst/sst_acpi.c @@ -255,18 +255,15 @@ static int is_byt(void) return status; }
-static int is_byt_cr(struct device *dev, bool *bytcr) +static bool is_byt_cr(struct device *dev) { int status = 0;
- if (IS_ENABLED(CONFIG_IOSF_MBI)) { - u32 bios_status; - - if (!is_byt() || !iosf_mbi_available()) { - /* bail silently */ - return status; - } + if (!is_byt()) + return false;
+ if (iosf_mbi_available()) { + u32 bios_status; status = iosf_mbi_read(BT_MBI_UNIT_PMC, /* 0x04 PUNIT */ MBI_REG_READ, /* 0x10 */ 0x006, /* BIOS_CONFIG */ @@ -278,15 +275,17 @@ static int is_byt_cr(struct device *dev, bool *bytcr) /* bits 26:27 mirror PMIC options */ bios_status = (bios_status >> 26) & 3;
- if ((bios_status == 1) || (bios_status == 3)) - *bytcr = true; - else - dev_info(dev, "BYT-CR not detected\n"); + if (bios_status == 1 || bios_status == 3) { + dev_info(dev, "Detected Baytrail-CR platform\n"); + return true; + } + + dev_info(dev, "BYT-CR not detected\n"); } } else { - dev_info(dev, "IOSF_MBI not enabled, no BYT-CR detection\n"); + dev_info(dev, "IOSF_MBI not available, no BYT-CR detection\n"); } - return status; + return false; }
@@ -301,7 +300,6 @@ static int sst_acpi_probe(struct platform_device *pdev) struct platform_device *plat_dev; struct sst_platform_info *pdata; unsigned int dev_id; - bool bytcr = false;
id = acpi_match_device(dev->driver->acpi_match_table, dev); if (!id) @@ -333,10 +331,7 @@ static int sst_acpi_probe(struct platform_device *pdev) if (ret < 0) return ret;
- ret = is_byt_cr(dev, &bytcr); - if (!(ret < 0 || !bytcr)) { - dev_info(dev, "Detected Baytrail-CR platform\n"); - + if (is_byt_cr(dev)) { /* override resource info */ byt_rvp_platform_data.res_info = &bytcr_res_info; }