ARM: shmobile: r8a7740: add DMAEngine support for USB
Current shdmac can support USB DMAC on r8a7740.
This support reduce CPU duty when USB access.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index 39b1311..daf3eac 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -463,7 +463,7 @@
MSTP230,
MSTP222,
- MSTP218, MSTP217, MSTP216,
+ MSTP218, MSTP217, MSTP216, MSTP214,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP329, MSTP328, MSTP323, MSTP320,
@@ -489,6 +489,7 @@
[MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
[MSTP217] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
[MSTP216] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
+ [MSTP214] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */
[MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
[MSTP206] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
[MSTP204] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
@@ -567,6 +568,7 @@
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]),
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]),
+ CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]),
CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]),
CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]),
CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),