On Fri, Apr 17, 2015 at 05:32:58PM +0900, Inha Song wrote:
This patch add support for select accessory detect mode to HPDETL or HPDETR. Arizona provides a headphone detection circuit on the HPDETL and HPDETR pins to measure the impedance of an external load connected to the headphone.
Depending on board design, headphone detect pins can change to HPDETR or HPDETL.
Signed-off-by: Inha Song ideal.song@samsung.com
drivers/extcon/extcon-arizona.c | 34 ++++++++++++++++++++++++++++++---- include/linux/mfd/arizona/pdata.h | 3 +++ 2 files changed, 33 insertions(+), 4 deletions(-)
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 63f01c4..7bc9159 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -95,6 +95,7 @@ struct arizona_extcon_info { int jack_flips;
int hpdet_ip;
- int hpdet_channel;
Don't really think this is necessary we can just use the pdata value where required doesn't add much copying it to extcon_info.
struct extcon_dev *edev; }; @@ -653,9 +654,9 @@ static void arizona_identify_headphone(struct arizona_extcon_info *info) ret = regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, ARIZONA_ACCDET_MODE_MASK,
ARIZONA_ACCDET_MODE_HPL);
info->hpdet_channel);
dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret);
dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);@@ -705,9 +706,9 @@ static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) ARIZONA_ACCESSORY_DETECT_MODE_1, ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, info->micd_modes[0].src |
ARIZONA_ACCDET_MODE_HPL);
info->hpdet_channel);
dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret);
dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);@@ -1103,6 +1104,23 @@ static void arizona_micd_set_level(struct arizona *arizona, int index, regmap_update_bits(arizona->regmap, reg, mask, level); }
+#ifdef CONFIG_OF +static int arizona_of_get_extcon_pdata(struct arizona *arizona) +{
- struct arizona_pdata *pdata = &arizona->pdata;
- of_property_read_u32(arizona->dev->of_node, "wlf,hpdet-channel",
&pdata->hpdet_channel);- return 0;
+} +#else +static inline int arizona_of_get_extcon_pdata(struct arizona *arizona) +{
- return 0;
+} +#endif
I believe it is preferred to leave this as not ifdef'ed...
static int arizona_extcon_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); @@ -1120,6 +1138,9 @@ static int arizona_extcon_probe(struct platform_device *pdev) if (!info) return -ENOMEM;
- if (!dev_get_platdata(arizona->dev))
arizona_of_get_extcon_pdata(arizona);
And to wrap this in an if (IS_ENABLED(CONFIG_OF)).
- info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD"); if (IS_ERR(info->micvdd)) { ret = PTR_ERR(info->micvdd);
@@ -1338,6 +1359,11 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona_extcon_set_mode(info, 0);
- if (arizona->pdata.hpdet_channel)
info->hpdet_channel = ARIZONA_ACCDET_MODE_HPR;- else
info->hpdet_channel = ARIZONA_ACCDET_MODE_HPL;
Just move the two defines in include/dt-bindings/mfd/arizona.h and have the pdata get set directly to one of the values.
pm_runtime_enable(&pdev->dev); pm_runtime_idle(&pdev->dev); pm_runtime_get_sync(&pdev->dev); diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 4578c72..feb5903 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -139,6 +139,9 @@ struct arizona_pdata { /** GPIO used for mic isolation with HPDET */ int hpdet_id_gpio;
- /** Channel to use for headphone detection */
- int hpdet_channel;
Lets use and unsigned here, we don't need it to be signed and it saves type issues with read_u32.
- /** Extra debounce timeout used during initial mic detection (ms) */ int micd_detect_debounce;
-- 2.0.0.390.gcb682f8
Thanks, Charles