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path: root/drivers/soc/ti/omap_prm.c
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2019-10-29soc: ti: omap-prm: fix return value check in omap_prm_probe()Wei Yongjun
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 3e99cb214f03 ("soc: ti: add initial PRM driver with reset control support") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: add omap5 PRM dataTero Kristo
Add PRM instance data for omap5 family of SoCs. Initially this is just used to provide reset support. Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: add am4 PRM dataTero Kristo
Add PRM instance data for am4 family of SoCs. Initially this is just used to provide reset support. Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: add dra7 PRM dataTero Kristo
Add PRM instance data for dra7 family of SoCs. Initially this is just used to provide reset support. Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: add data for am33xxTero Kristo
Add PRM instance data for AM33xx SoC. Includes some basic register definitions and reset data for now. Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: add omap4 PRM dataTero Kristo
Add PRM data for omap4 family of SoCs. Initially this is just used to provide reset support. Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: add support for denying idle for reset clockdomainTero Kristo
TI SoCs hardware reset signals require the parent clockdomain to be in force wakeup mode while de-asserting the reset, otherwise it may never complete. To support this, add pdata hooks to control the clockdomain directly. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: omap-prm: poll for reset complete during de-assertTero Kristo
Poll for reset completion status during de-assertion of reset, otherwise the IP in question might be accessed before it has left reset properly. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2019-10-09soc: ti: add initial PRM driver with reset control supportTero Kristo
Add initial PRM (Power and Reset Management) driver for TI OMAP class SoCs. Initially this driver only supports reset control, but can be extended to support rest of the functionality, like powerdomain control, PRCM irq support etc. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>