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| author | Ricardo Neri <ricardo.neri@ti.com> | 2012-06-21 10:08:53 +0200 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2012-06-21 18:08:47 -0600 |
| commit | dc57aef503859dbf724f6126c58b2e1672e215f3 (patch) | |
| tree | 329e8bee393fa7f154e95585b3086250426f9e2d | |
| parent | 65e25976b75c4996c5650afadc4180db09ec7475 (diff) | |
| download | op-kernel-dev-dc57aef503859dbf724f6126c58b2e1672e215f3.zip op-kernel-dev-dc57aef503859dbf724f6126c58b2e1672e215f3.tar.gz | |
ARM: OMAP4: hwmod data: Force HDMI in no-idle while enabled
As per the OMAP4 documentation, audio over HDMI must be transmitted in
no-idle mode. This patch adds the HWMOD_SWSUP_SIDLE so that omap_hwmod uses
no-idle/force-idle settings instead of smart-idle mode.
This is required as the DSS interface clock is used as functional clock
for the HDMI wrapper audio FIFO. If no-idle mode is not used, audio could
be choppy, have bad quality or not be audible at all.
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
[b-cousson@ti.com: Update the subject and align the .flags
location with the script template]
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index c4c9cdd..f30e861 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -853,6 +853,11 @@ static struct omap_hwmod omap44xx_dss_hdmi_hwmod = { .name = "dss_hdmi", .class = &omap44xx_hdmi_hwmod_class, .clkdm_name = "l3_dss_clkdm", + /* + * HDMI audio requires to use no-idle mode. Hence, + * set idle mode by software. + */ + .flags = HWMOD_SWSUP_SIDLE, .mpu_irqs = omap44xx_dss_hdmi_irqs, .sdma_reqs = omap44xx_dss_hdmi_sdma_reqs, .main_clk = "dss_48mhz_clk", |
