linux-kernel - [PATCH 1/3 v6] thermal: samsung: add intclr_fall_shift bit in exynos_tmu

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Date:	Thu, 17 Oct 2013 08:41:13 +0530
From:	Naveen Krishna Chatradhi <ch.naveen@...sung.com>
To:	linux-pm@...r.kernel.org
Cc:	naveenkrishna.ch@...il.com, rui.zhang@...el.com,
	eduardo.valentin@...com, linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org, amit.daniel@...sung.com,
	kgene.kim@...sung.com, devicetree@...r.kernel.org,
	b.zolnierkie@...sung.com, cpgs@...sung.com
Subject: [PATCH 1/3 v6] thermal: samsung: add intclr_fall_shift bit in
 exynos_tmu_register

On Exynos5250, the FALL interrupt related en, status and clear bits are
available at an offset of
16 in INTEN, INTSTAT registers and at an offset of
12 in INTCLEAR register.

On Exynos5420, the FALL interrupt related en, status and clear bits are
available at an offset of
16 in INTEN, INTSTAT and INTCLEAR registers.

On Exynos5440,
the FALL_IRQEN bits are at an offset of 4
and the RISE_IRQEN bits are at an offset of 0

This patch introduces a new bit field intclr_fall_shift to handle the
offset for exyns5250 and exynos5440

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@...sung.com>
---
Changes since v1:
Changes since v2:
Changes since v3:
  None
Changes since v4:
 Correct the CLEAR_FALL_INT_SHIFT for Exynos5250/Exynos5440
Changes since v5:
 Modify the commit message

 drivers/thermal/samsung/exynos_tmu.c      |    2 +-
 drivers/thermal/samsung/exynos_tmu.h      |    2 ++
 drivers/thermal/samsung/exynos_tmu_data.c |    2 ++
 drivers/thermal/samsung/exynos_tmu_data.h |    4 +++-
 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 32f38b9..b2202fa 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -265,7 +265,7 @@ skip_calib_data:
 				data->base + reg->threshold_th1);
 
 		writel((reg->inten_rise_mask << reg->inten_rise_shift) |
-			(reg->inten_fall_mask << reg->inten_fall_shift),
+			(reg->inten_fall_mask << reg->intclr_fall_shift),
 				data->base + reg->tmu_intclear);
 
 		/* if last threshold limit is also present */
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index 3fb6554..5f4fe6c 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -136,6 +136,7 @@ enum soc_type {
  * @inten_fall3_shift: shift bits of falling 3 interrupt bits.
  * @tmu_intstat: Register containing the interrupt status values.
  * @tmu_intclear: Register for clearing the raised interrupt status.
+ * @intclr_fall_shift: shift bits for interrupt clear fall 0
  * @emul_con: TMU emulation controller register.
  * @emul_temp_shift: shift bits of emulation temperature.
  * @emul_time_shift: shift bits of emulation time.
@@ -207,6 +208,7 @@ struct exynos_tmu_registers {
 	u32	tmu_intstat;
 
 	u32	tmu_intclear;
+	u32	intclr_fall_shift;
 
 	u32	emul_con;
 	u32	emul_temp_shift;
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index 073c292..09a8a27 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -123,6 +123,7 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
 	.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
 	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
 	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
+	.intclr_fall_shift = EXYNOS5250_TMU_CLEAR_FALL_INT_SHIFT,
 	.emul_con = EXYNOS_EMUL_CON,
 	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
 	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
@@ -228,6 +229,7 @@ static const struct exynos_tmu_registers exynos5440_tmu_registers = {
 	.inten_fall0_shift = EXYNOS5440_TMU_INTEN_FALL0_SHIFT,
 	.tmu_intstat = EXYNOS5440_TMU_S0_7_IRQ,
 	.tmu_intclear = EXYNOS5440_TMU_S0_7_IRQ,
+	.intclr_fall_shift = EXYNOS5440_TMU_CLEAR_FALL_INT_SHIFT,
 	.tmu_irqstatus = EXYNOS5440_TMU_IRQ_STATUS,
 	.emul_con = EXYNOS5440_TMU_S0_7_DEBUG,
 	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
index a1ea19d..9c1e2c8 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.h
+++ b/drivers/thermal/samsung/exynos_tmu_data.h
@@ -69,9 +69,11 @@
 #define EXYNOS_TMU_RISE_INT_MASK	0x111
 #define EXYNOS_TMU_RISE_INT_SHIFT	0
 #define EXYNOS_TMU_FALL_INT_MASK	0x111
-#define EXYNOS_TMU_FALL_INT_SHIFT	12
+#define EXYNOS_TMU_FALL_INT_SHIFT	16
 #define EXYNOS_TMU_CLEAR_RISE_INT	0x111
 #define EXYNOS_TMU_CLEAR_FALL_INT	(0x111 << 12)
+#define EXYNOS5250_TMU_CLEAR_FALL_INT_SHIFT	12
+#define EXYNOS5440_TMU_CLEAR_FALL_INT_SHIFT	4
 #define EXYNOS_TMU_TRIP_MODE_SHIFT	13
 #define EXYNOS_TMU_TRIP_MODE_MASK	0x7
 #define EXYNOS_TMU_THERM_TRIP_EN_SHIFT	12
-- 
1.7.10.4

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