kernel.git/drivers/bus/ti-sysc.c, branch linux-4.18.y

bus: ti-sysc: Fix no_console_suspend handling

2018-10-03T23:59:22Z

[ Upstream commit 4f3530f4a41d49c41015020cd9a5ed5c95b5d2db ] If no_console_suspend is set, we should keep console enabled during suspend. Lets fix this by only producing a warning if we can't idle hardware during suspend. Fixes: ef55f8215a78 ("bus: ti-sysc: Improve suspend and resume handling") Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

bus: ti-sysc: Fix module register ioremap for larger offsets

2018-10-03T23:59:21Z

[ Upstream commit 0ef8e3bb974af56346b34393e643d491d9141c66 ] We can have the interconnect target module control registers pretty much anywhere within the module range. The current code attempts an incomplete optimization of the ioremap size but does it wrong and it only works for registers at the beginning of the module. Let's just use the largest control register to calculate the ioremap size. The ioremapped range is for most part cached anyways so there is no need for size optimization. Let's also update the comments accordingly. Fixes: 0eecc636e5a2 ("bus: ti-sysc: Add minimal TI sysc interconnect target driver") Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

bus: ti-sysc: Use 2-factor allocator arguments

2018-07-02T11:24:44Z

This adjusts the allocator calls to use 2-factor argument call style, as done treewide already for improved defense against allocation overflows. Signed-off-by: Kees Cook Signed-off-by: Tony Lindgren

bus: ti-sysc: Fix optional clocks array access

2018-05-18T14:54:44Z

We should be checking ddata->clocks[i] instead of clock_names[i] for the optional clocks. Currently this just happens to work for the typical case of one fck and one optional clock. Fixes: 09dfe5810762 ("bus: ti-sysc: Add handling for clkctrl opt clocks") Cc: Dan Carpenter Reported-by: Dan Carpenter Signed-off-by: Tony Lindgren

bus: ti-sysc: Show module information for suspend if DEBUG is enabled

2018-05-01T13:54:17Z

Let's show module info if DEBUG is enabled to make it easier to follow what happens on the suspend and resume path. Signed-off-by: Tony Lindgren

bus: ti-sysc: Tag sdio and wdt with legacy mode for suspend

2018-05-01T13:54:17Z

Looks like these two device drivers don't yet behave properly for suspend unless configured with the legacy option. Signed-off-by: Tony Lindgren

bus: ti-sysc: Detect UARTs for SYSC_QUIRK_LEGACY_IDLE quirk on omap4

2018-05-01T13:54:17Z

Starting with omap4, UARTs have different revision register that we need to detect to enable SYSC_QUIRK_LEGACY_IDLE. Otherwise UARTs won't idle properly. Signed-off-by: Tony Lindgren

bus: ti-sysc: Detect omap4 type timers for quirk

2018-05-01T13:54:17Z

Starting with omap4 some timers have different sysc registers (type2) compared to the omap2 timers (type1). We need to detect these to enable the quirk for SYSC_QUIRK_LEGACY_IDLE, otherwise these won't be idling properly. Siganed-off-by: Tony Lindgren

bus: ti-sysc: Add initial support for external resets

2018-05-01T13:54:17Z

Some modules need to use external resets in the rstctrl bits. Typically only one of the rstctrl bits is for the interconnect target module while the others are for various child devices. For ti-sysc driver, we just need the module rstctrl bit mapped. The rest of the rstctrl bits can be directly mapped to the child devices. Cc: Suman Anna Signed-off-by: Tony Lindgren

bus: ti-sysc: Improve suspend and resume handling

2018-05-01T13:54:17Z

Based on testing with more devices I noticed that some devices don't suspend or resume properly. We need to PM runtime suspend and resume devices if we have ddata->needs_resume set. Let's also improve the error handling and add few debug statements to make it easier to notice suspend and resume related issues if DEBUG is set. Signed-off-by: Tony Lindgren