ARM: shmobile: r8a7740: add DMAEngine support for FSI

Current shdmac can support FSI DMAC on r8a7740.
This support reduce CPU duty when sound was playback.

This patch is based on v1.0 manual

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>

1 files changed, 7 insertions, 1 deletions

diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index 7b9e4ab34fa2..39b131101167 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -463,6 +463,7 @@ enum {
 
         MSTP230,
         MSTP222,
+        MSTP218, MSTP217, MSTP216,
         MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
 
         MSTP329, MSTP328, MSTP323, MSTP320,
@@ -485,6 +486,9 @@ static struct clk mstp_clks[MSTP_NR] = {
 
         [MSTP230] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 30, 0), /* SCIFA6 */
         [MSTP222] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 22, 0), /* SCIFA7 */
+        [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 */
         [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 */
@@ -563,7 +567,9 @@ static struct clk_lookup lookups[] = {
         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.2",        &mstp_clks[MSTP216]),
+        CLKDEV_DEV_ID("sh-dma-engine.1",        &mstp_clks[MSTP217]),
+        CLKDEV_DEV_ID("sh-dma-engine.0",        &mstp_clks[MSTP218]),
         CLKDEV_DEV_ID("sh-sci.7",               &mstp_clks[MSTP222]),
         CLKDEV_DEV_ID("sh-sci.6",               &mstp_clks[MSTP230]),