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Commit 80156b21 authored by Arjun Singh's avatar Arjun Singh Committed by Gerrit - the friendly Code Review server
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soc: qcom: bgrsb: avoids RSB disable command repetition 



Adds TWM IN/OUT command to avoid RSB disable command
repetition from power hal.

Change-Id: I065bbecb67483b1e69c8056e13dbc191df85240f
Signed-off-by: default avatarArjun Singh <arsingh@codeaurora.org>
parent d6b58423

drivers/soc/qcom/bg_rsb.c

+17 −0
Original line number Diff line number Diff line
@@ -49,6 +49,8 @@ 
#define BGRSB_POWER_DISABLE 0

#define BGRSB_GLINK_POWER_ENABLE 6

#define BGRSB_GLINK_POWER_DISABLE 7

#define BGRSB_IN_TWM 8

#define BGRSB_OUT_TWM 9





struct bgrsb_regulator {
@@ -137,10 +139,12 @@ struct bgrsb_priv { 
	bool is_calibrd;



	bool is_cnfgrd;

	bool blk_rsb_cmnds;

};



static void *bgrsb_drv;

static int bgrsb_enable(struct bgrsb_priv *dev, bool enable);

static bool is_in_twm;



int bgrsb_send_input(struct event *evnt)

{
@@ -418,6 +422,7 @@ static void bgrsb_bgdown_work(struct work_struct *work) 
	}



	dev->is_cnfgrd = false;

	dev->blk_rsb_cmnds = false;

	pr_info("RSB current state is : %d\n", dev->bgrsb_current_state);



	if (dev->bgrsb_current_state == BGRSB_STATE_INIT) {
@@ -457,6 +462,8 @@ static void bgrsb_glink_bgdown_work(struct work_struct *work) 
	}



	dev->is_cnfgrd = false;

	if (is_in_twm)

		dev->blk_rsb_cmnds = true;



	if (dev->handle)

		glink_close(dev->handle);
@@ -832,9 +839,13 @@ static int split_bg_work(struct bgrsb_priv *dev, char *str) 
		dev->bttn_configs = (uint8_t)val;

		queue_work(dev->bgrsb_wq, &dev->bttn_configr_work);

		break;

	case BGRSB_IN_TWM:

		is_in_twm = true;

	case BGRSB_GLINK_POWER_DISABLE:

		queue_work(dev->bgrsb_wq, &dev->rsb_glink_down_work);

		break;

	case BGRSB_OUT_TWM:

		is_in_twm = false;

	case BGRSB_GLINK_POWER_ENABLE:

		queue_work(dev->bgrsb_wq, &dev->rsb_glink_up_work);

		break;
@@ -851,6 +862,12 @@ static int store_enable(struct device *pdev, struct device_attribute *attr, 
	if (!arr)

		return -ENOMEM;



	if (dev->blk_rsb_cmnds) {

		pr_err("Device is in TWM state\n");

		kfree(arr);

		return count;

	}



	if (!dev->is_cnfgrd) {

		kfree(arr);

		return -ENOMEDIUM;