On Wed, Jan 5, 2011 at 1:32 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote: > From: Stephen Warren <swarren@xxxxxxxxxx> > > Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx> > --- > This is for, and rediff'd against, for-next. > > The Tegra audio driver relies on this. The other DMA driver fix I just > sent might rely on this in order to get zero fuzz/offset. > > arch/arm/mach-tegra/dma.c | 14 ++++++++++++++ > arch/arm/mach-tegra/tegra2_clocks.c | 6 ++++++ > 2 files changed, 20 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-tegra/dma.c b/arch/arm/mach-tegra/dma.c > index edda6ec..d8eb096 100644 > --- a/arch/arm/mach-tegra/dma.c > +++ b/arch/arm/mach-tegra/dma.c > @@ -27,6 +27,7 @@ > #include <linux/err.h> > #include <linux/irq.h> > #include <linux/delay.h> > +#include <linux/clk.h> > #include <mach/dma.h> > #include <mach/irqs.h> > #include <mach/iomap.h> > @@ -646,6 +647,19 @@ int __init tegra_dma_init(void) > int i; > unsigned int irq; > void __iomem *addr; > + struct clk *c; > + > + c = clk_get_sys("tegra-dma", NULL); > + if (IS_ERR(c)) { > + pr_err("Unable to get clock for APB DMA\n"); > + ret = PTR_ERR(c); > + goto fail; > + } > + ret = clk_enable(c); > + if (ret != 0) { > + pr_err("Unable to enable clock for APB DMA\n"); > + goto fail; > + } > > addr = IO_ADDRESS(TEGRA_APB_DMA_BASE); > writel(GEN_ENABLE, addr + APB_DMA_GEN); > diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c > index f7e1e68..ef46313 100644 > --- a/arch/arm/mach-tegra/tegra2_clocks.c > +++ b/arch/arm/mach-tegra/tegra2_clocks.c > @@ -1588,6 +1588,11 @@ static struct clk_mux_sel mux_clk_32k[] = { > { 0, 0}, > }; > > +static struct clk_mux_sel mux_pclk[] = { > + { .input = &tegra_clk_pclk, .value = 0}, > + { 0, 0}, > +}; > + > #define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \ > { \ > .name = _name, \ > @@ -1604,6 +1609,7 @@ static struct clk_mux_sel mux_clk_32k[] = { > } > > struct clk tegra_periph_clks[] = { > + PERIPH_CLK("apbdma", "tegra-dma", NULL, 34, 0, 108000000, mux_pclk, 0), > PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET), > PERIPH_CLK("timer", "timer", NULL, 5, 0, 26000000, mux_clk_m, 0), > PERIPH_CLK("i2s1", "i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71), > -- > 1.7.0.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-tegra" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Pushed to tegra for-next -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html