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| author | Sebastian Reichel <sre@kernel.org> | 2016-04-30 16:23:12 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2016-06-28 00:37:43 +0200 |
| commit | b6616be32412a4c9a0f04aec247d2760fcad8cfd (patch) | |
| tree | f10d15b2e399c57c1fdb485d223ca0307a9e7846 /drivers/hsi | |
| parent | 8c009f1f5def91a4764410c65f8b5739724b9e19 (diff) | |
| download | linux-stable-b6616be32412a4c9a0f04aec247d2760fcad8cfd.tar.gz linux-stable-b6616be32412a4c9a0f04aec247d2760fcad8cfd.tar.bz2 linux-stable-b6616be32412a4c9a0f04aec247d2760fcad8cfd.zip | |
HSI: omap_ssi: do not reset module
module reset and power management rule setup
is already done by hwmod. Remove this cruft,
which predates hwmod.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Diffstat (limited to 'drivers/hsi')
| -rw-r--r-- | drivers/hsi/controllers/omap_ssi.h | 2 | ||||
| -rw-r--r-- | drivers/hsi/controllers/omap_ssi_core.c | 19 |
2 files changed, 1 insertions, 20 deletions
diff --git a/drivers/hsi/controllers/omap_ssi.h b/drivers/hsi/controllers/omap_ssi.h index 7b4dec2c69ff..ba2f92722c09 100644 --- a/drivers/hsi/controllers/omap_ssi.h +++ b/drivers/hsi/controllers/omap_ssi.h @@ -138,7 +138,6 @@ struct gdd_trn { * @fck_rate: clock rate * @loss_count: To follow if we need to restore context or not * @max_speed: Maximum TX speed (Kb/s) set by the clients. - * @sysconfig: SSI controller saved context * @gdd_gcr: SSI GDD saved context * @get_loss: Pointer to omap_pm_get_dev_context_loss_count, if any * @port: Array of pointers of the ports of the controller @@ -158,7 +157,6 @@ struct omap_ssi_controller { u32 loss_count; u32 max_speed; /* OMAP SSI Controller context */ - u32 sysconfig; u32 gdd_gcr; int (*get_loss)(struct device *dev); struct omap_ssi_port **port; diff --git a/drivers/hsi/controllers/omap_ssi_core.c b/drivers/hsi/controllers/omap_ssi_core.c index a3e0febfb64a..54943e439488 100644 --- a/drivers/hsi/controllers/omap_ssi_core.c +++ b/drivers/hsi/controllers/omap_ssi_core.c @@ -452,8 +452,6 @@ out_err: static int ssi_hw_init(struct hsi_controller *ssi) { struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); - unsigned int i; - u32 val; int err; err = pm_runtime_get_sync(ssi->device.parent); @@ -461,27 +459,12 @@ static int ssi_hw_init(struct hsi_controller *ssi) dev_err(&ssi->device, "runtime PM failed %d\n", err); return err; } - /* Reseting SSI controller */ - writel_relaxed(SSI_SOFTRESET, omap_ssi->sys + SSI_SYSCONFIG_REG); - val = readl(omap_ssi->sys + SSI_SYSSTATUS_REG); - for (i = 0; ((i < 20) && !(val & SSI_RESETDONE)); i++) { - msleep(20); - val = readl(omap_ssi->sys + SSI_SYSSTATUS_REG); - } - if (!(val & SSI_RESETDONE)) { - dev_err(&ssi->device, "SSI HW reset failed\n"); - pm_runtime_put_sync(ssi->device.parent); - return -EIO; - } /* Reseting GDD */ writel_relaxed(SSI_SWRESET, omap_ssi->gdd + SSI_GDD_GRST_REG); /* Get FCK rate in KHz */ omap_ssi->fck_rate = DIV_ROUND_CLOSEST(ssi_get_clk_rate(ssi), 1000); dev_dbg(&ssi->device, "SSI fck rate %lu KHz\n", omap_ssi->fck_rate); - /* Set default PM settings */ - val = SSI_AUTOIDLE | SSI_SIDLEMODE_SMART | SSI_MIDLEMODE_SMART; - writel_relaxed(val, omap_ssi->sys + SSI_SYSCONFIG_REG); - omap_ssi->sysconfig = val; + writel_relaxed(SSI_CLK_AUTOGATING_ON, omap_ssi->sys + SSI_GDD_GCR_REG); omap_ssi->gdd_gcr = SSI_CLK_AUTOGATING_ON; pm_runtime_put_sync(ssi->device.parent); |