Felipe,
On 11/11/2015 07:07 PM, Felipe Balbi wrote:
> From: Peter Ujfalusi
>
> McASP3 is used by default on DRA7x based boards for audio.
While this patch works, it is not the correct one(s) to apply.
https://lkml.org/lkml/2015/10/30/91
is the series which should have been applied to 4.4.
Paul acked the series, but for some reason it missed the initial ARM pull for
4.4
--
Péter
>
> This fixes following error with Beagle x15:
>
> [0.402190] platform 48468000.mcasp: Cannot lookup hwmod 'mcasp3'
>
> which is followed by a splat:
>
> [ 11.207663] Unhandled fault: imprecise external abort (0x1406) at
> 0x
> [ 11.207670] [ cut here ]
> [ 11.207683] WARNING: CPU: 0 PID: 272 at
> /home/balbi/workspace/linux/drivers/bus/omap_l3_noc.c:147
> l3_interrupt_handler+0x220/0x34c()
> [ 11.207688] 4400.ocp:L3 Custom Error: MASTER MPU TARGET L4_PER2_P3
> (Read): Data Access in User mode during Functional access
> [ 11.207742] Modules linked in: snd_soc_simple_card(+) omapdss leds_gpio
> led_class gpio_fan extcon_usb_gpio cpufreq_dt omap_wdt phy_omap_usb2
> snd_soc_davinci_mcasp snd_soc_edma snd_soc_omap snd_soc_tlv320aic3x rtc_omap
> snd_soc_core ti_soc_thermal dwc3_omap snd_pcm_dmaengine snd_pcm extcon_palmas
> snd_timer extcon snd rtc_palmas rtc_ds1307 tmp102 palmas_pwrbutton
> thermal_sys soundcore hwmon autofs4
> [ 11.207748] CPU: 0 PID: 272 Comm: systemd-udevd Not tainted
> 4.3.0-11482-g3d26f1f5fc82-dirty #27
> [ 11.207751] Hardware name: Generic DRA74X (Flattened Device Tree)
> [ 11.207765] [] (unwind_backtrace) from []
> (show_stack+0x10/0x14)
> [ 11.207772] [] (show_stack) from []
> (dump_stack+0x84/0x9c)
> [ 11.207783] [] (dump_stack) from []
> (warn_slowpath_common+0x78/0xb4)
> [ 11.207790] [] (warn_slowpath_common) from []
> (warn_slowpath_fmt+0x30/0x40)
> [ 11.207798] [] (warn_slowpath_fmt) from []
> (l3_interrupt_handler+0x220/0x34c)
> [ 11.207805] [] (l3_interrupt_handler) from []
> (handle_irq_event_percpu+0x44/0x1f0)
> [ 11.207811] [] (handle_irq_event_percpu) from []
> (handle_irq_event+0x38/0x5c)
> [ 11.207818] [] (handle_irq_event) from []
> (handle_fasteoi_irq+0xcc/0x1b0)
> [ 11.207824] [] (handle_fasteoi_irq) from []
> (generic_handle_irq+0x20/0x34)
> [ 11.207829] [] (generic_handle_irq) from []
> (__handle_domain_irq+0x64/0xe0)
> [ 11.207835] [] (__handle_domain_irq) from []
> (gic_handle_irq+0x40/0x8c)
> [ 11.207842] [] (gic_handle_irq) from []
> (__irq_usr+0x54/0x80)
> [ 11.207846] Exception stack(0xed143fb0 to 0xed143ff8)
> [ 11.207851] 3fa0: 7f69b370 7f69b368
> 0370
> [ 11.207857] 3fc0: b6ddb4e0 7f69b370 0016 7f69b308 be8db278 be8db2a0
> 7f68b024 0001
> [ 11.207863] 3fe0: b6ddb4e0 be8db180 b6d46a47 b6d46a50 6030
> [ 11.207866] ---[ end trace 7d8de48d1bc8fbac ]---
>
> Signed-off-by: Peter Ujfalusi
> Signed-off-by: Felipe Balbi
> ---
> arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 41
> +++
> 1 file changed, 41 insertions(+)
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> index 51d1ecb384bd..b730c582a1f7 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> @@ -1298,6 +1298,38 @@ static struct omap_hwmod dra7xx_mcspi4_hwmod = {
> };
>
> /*
> + * 'mcasp' class
> + *
> + */
> +static struct omap_hwmod_class_sysconfig dra7xx_mcasp_sysc = {
> + .sysc_offs = 0x0004,
> + .sysc_flags = SYSC_HAS_SIDLEMODE,
> + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
> + .sysc_fields= &omap_hwmod_sysc_type3,
> +};
> +
> +static struct omap_hwmod_class dra7xx_mcasp_hwmod_class = {
> + .name = "mcasp",
> + .sysc = &dra7xx_mcasp_sysc,
> +};
> +
> +/* mcasp3 */
> +static struct omap_hwmod dra7xx_mcasp3_hwmod = {
> + .name = "mcasp3",
> + .class = &dra7xx_mcasp_hwmod_class,
> + .clkdm_name = "l4per2_clkdm",
> + .main_clk = "mcasp3_ahclkx_mux",
> + .flags = HWMOD_SWSUP_SIDLE,
> + .prcm = {
> + .omap4 = {
> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP3_CLKCTRL_OFFSET,
> + .context_offs = DRA7XX_RM_L4PER2_MCASP3_CONTEXT_OFFSET,
> + .modulemode = MODULEMODE_SWCTRL,
> + },
> + },
> +};
> +
> +/*
> * 'mmc' class
> *
> */
> @@ -2566,6 +2598,14 @@ static struct omap_hwmod_ocp_if dra7xx_l3_main_1__hdmi
> = {
> .user = OCP_USER_MPU | OCP_USER_SDMA,
> };
>
> +/* l4_per2 -> mcasp3 */
> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp3 = {
> + .master = &dra7xx_l4_per2_hwmod,
> + .slave = &dra7xx_mcasp3_hwmod,
> + .clk= "l3_iclk_div",
> + .user = OCP_USER_MPU | OCP_USER_SDMA,
> +};
> +
> /* l4_per1 -> elm */
> stati