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Commit 379a7a56 authored by Archana Obannagari's avatar Archana Obannagari
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msm: kgsl: Add a check for valid frequency of RBBM timer clock 



rbbmtimer_clk hardwired fixed XO frequency 19.2Mhz. clock_round_rate()
for RBBM timer clock fails with -EPERM as it is fixed. So added a
check to make sure that rbbmtimer_clk clk_set_rate() has valid
frequency. This avoids warning message in the driver log.

Change-Id: I8f8bcec88e6a39e1550bb67590e6b66dba8e7a27
Signed-off-by: default avatarArchana Obannagari <aobann@codeaurora.org>
parent facc015c

drivers/gpu/msm/kgsl_pwrctrl.c

+6 −7
Original line number Diff line number Diff line 
/* Copyright (c) 2010-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2010-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -2078,7 +2078,7 @@ static int kgsl_pwrctrl_clk_set_rate(struct clk *grp_clk, unsigned int freq, 


int kgsl_pwrctrl_init(struct kgsl_device *device)

{

	int i, k, m, n = 0, result;

	int i, k, m, n = 0, result, freq;

	struct platform_device *pdev = device->pdev;

	struct kgsl_pwrctrl *pwr = &device->pwrctrl;

	struct device_node *ocmem_bus_node;
@@ -2142,7 +2142,7 @@ int kgsl_pwrctrl_init(struct kgsl_device *device) 
	pwr->wakeup_maxpwrlevel = 0;



	for (i = 0; i < pwr->num_pwrlevels; i++) {

		unsigned int freq = pwr->pwrlevels[i].gpu_freq;

		freq = pwr->pwrlevels[i].gpu_freq;



		if (freq > 0)

			freq = clk_round_rate(pwr->grp_clks[0], freq);
@@ -2153,11 +2153,10 @@ int kgsl_pwrctrl_init(struct kgsl_device *device) 
	kgsl_pwrctrl_clk_set_rate(pwr->grp_clks[0],

		pwr->pwrlevels[pwr->num_pwrlevels - 1].gpu_freq, clocks[0]);



	if (pwr->grp_clks[6] != NULL)

	freq = clk_round_rate(pwr->grp_clks[6], KGSL_RBBMTIMER_CLK_FREQ);

	if (freq > 0)

		kgsl_pwrctrl_clk_set_rate(pwr->grp_clks[6],

			clk_round_rate(pwr->grp_clks[6],

			KGSL_RBBMTIMER_CLK_FREQ),

			clocks[6]);

			freq, clocks[6]);



	result = get_regulators(device);

	if (result)