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spi_qsd: Vote for PNOC clock before spi clock 

spi core and ahb clocks are sourced from the PNOC clock.
so vote for PNOC clock before voting for the spi clocks
to avoid unclocked register access during the spi transactions
or accessing the registers from the debugfs.

Change-Id: Icf4512b2ff87612902ea7cfb2449a9625260074f
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
This commit is contained in:
Kiran Gunda 2015-06-04 14:57:07 +05:30
parent 123d4855cb
commit 967e370500
1 changed files with 8 additions and 5 deletions
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13
drivers/spi/spi_qsd.c
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@ -2813,10 +2813,12 @@ static int msm_spi_pm_suspend_runtime(struct device *device)
msm_spi_bam_pipe_disconnect(dd, &dd->bam.prod);
msm_spi_bam_pipe_disconnect(dd, &dd->bam.cons);
}
if (dd->pdata && !dd->pdata->active_only)
msm_spi_clk_path_unvote(dd);
if (dd->pdata && !dd->pdata->is_shared)
put_local_resources(dd);
if (dd->pdata && !dd->pdata->active_only)
msm_spi_clk_path_unvote(dd);
suspend_exit:
return 0;
}
@ -2844,14 +2846,15 @@ static int msm_spi_pm_resume_runtime(struct device *device)
else
dd->is_init_complete = true;
}
msm_spi_clk_path_init(dd);
if (!dd->pdata->active_only)
msm_spi_clk_path_vote(dd);
if (!dd->pdata->is_shared) {
ret = get_local_resources(dd);
if (ret)
return ret;
}
msm_spi_clk_path_init(dd);
if (!dd->pdata->active_only)
msm_spi_clk_path_vote(dd);
if (!dd->pdata->is_shared && dd->use_dma) {
msm_spi_bam_pipe_connect(dd, &dd->bam.prod,
&dd->bam.prod.config);