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Driver changes for omaps for v6.6

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Driver changes for ti-sysc interconnect target module driver and for
 l3 interconnect error handler. The ti-sysc driver changes just enable
 using it for 64-bit systems like TI am62 that have wake-up capability
 for the wkup domain devices. The l3 error handling improves the code
 to show the error source if an unrecoverable timeout error occurs.
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Merge tag 'omap-for-v6.6/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into soc/drivers

Driver changes for omaps for v6.6

Driver changes for ti-sysc interconnect target module driver and for
l3 interconnect error handler. The ti-sysc driver changes just enable
using it for 64-bit systems like TI am62 that have wake-up capability
for the wkup domain devices. The l3 error handling improves the code
to show the error source if an unrecoverable timeout error occurs.

* tag 'omap-for-v6.6/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Fix cast to enum warning
  bus: ti-sysc: Fix a build warning with W=1 for sysconfig
  bus: ti-sysc: Configure uart quirks for k3 SoC
  bus: ti-sysc: Build driver for TI K3 SoCs
  bus: ti-sysc: Fix build warning for 64-bit build
  bus: omap_l3_smx: identify timeout cause before rebooting

Link: https://lore.kernel.org/r/pull-1692158857-597450@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2023-08-21 21:16:11 -04:00
commit 6681618814
3 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/bus/Kconfig
View File

@ -210,7 +210,8 @@ config TI_PWMSS
config TI_SYSC
bool "TI sysc interconnect target module driver"
depends on ARCH_OMAP2PLUS
depends on ARCH_OMAP2PLUS || ARCH_K3
default y
help
Generic driver for Texas Instruments interconnect target module
found on many TI SoCs.

21
drivers/bus/omap_l3_smx.c
View File

@ -166,19 +166,10 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
irqreturn_t ret = IRQ_NONE;
int_type = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
if (!int_type) {
if (!int_type)
status = omap3_l3_readll(l3->rt, L3_SI_FLAG_STATUS_0);
/*
* if we have a timeout error, there's nothing we can
* do besides rebooting the board. So let's BUG on any
* of such errors and handle the others. timeout error
* is severe and not expected to occur.
*/
BUG_ON(status & L3_STATUS_0_TIMEOUT_MASK);
} else {
else
status = omap3_l3_readll(l3->rt, L3_SI_FLAG_STATUS_1);
/* No timeout error for debug sources */
}
/* identify the error source */
err_source = __ffs(status);
@ -190,6 +181,14 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
ret |= omap3_l3_block_irq(l3, error, error_addr);
}
/*
* if we have a timeout error, there's nothing we can
* do besides rebooting the board. So let's BUG on any
* of such errors and handle the others. timeout error
* is severe and not expected to occur.
*/
BUG_ON(!int_type && status & L3_STATUS_0_TIMEOUT_MASK);
/* Clear the status register */
clear = (L3_AGENT_STATUS_CLEAR_IA << int_type) |
L3_AGENT_STATUS_CLEAR_TA;

5
drivers/bus/ti-sysc.c
View File

@ -109,6 +109,7 @@ static const char * const clock_names[SYSC_MAX_CLOCKS] = {
* @cookie: data used by legacy platform callbacks
* @name: name if available
* @revision: interconnect target module revision
* @sysconfig: saved sysconfig register value
* @reserved: target module is reserved and already in use
* @enabled: sysc runtime enabled status
* @needs_resume: runtime resume needed on resume from suspend
@ -1525,6 +1526,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE),
SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47422e03, 0xffffffff,
SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE),
SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47424e03, 0xffffffff,
SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE),
/* Quirks that need to be set based on the module address */
SYSC_QUIRK("mcpdm", 0x40132000, 0, 0x10, -ENODEV, 0x50000800, 0xffffffff,
@ -3104,7 +3107,7 @@ static int sysc_init_static_data(struct sysc *ddata)
match = soc_device_match(sysc_soc_match);
if (match && match->data)
sysc_soc->soc = (int)match->data;
sysc_soc->soc = (enum sysc_soc)(uintptr_t)match->data;
/*
* Check and warn about possible old incomplete dtb. We now want to see