From: Yoshihiro Shimoda <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit 11313746547015ace605c4c347a40350753051e4 upstream. On R-Mobile APE6, since it has 3 thermal zones, ENR register has enable bits in bit 19-16, bit 11-8 and bit 3-0. However, on R-Car gen2, since it has 1 thermal zone, ENR register has enable bits in bit 3-0. (In other words, the write value should always be 0 for bit 31-4 of ENR register.) So, this patch fixes the ENR register value using I/O resource sets. Acked-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Yoshihiro Shimoda <[email protected]> Signed-off-by: Eduardo Valentin <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- drivers/thermal/rcar_thermal.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 88f92e1a9944..e9d3574bb560 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -367,6 +367,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) int i; int ret = -ENODEV; int idle = IDLE_INTERVAL; + u32 enr_bits = 0; common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL); if (!common) { @@ -405,9 +406,6 @@ static int rcar_thermal_probe(struct platform_device *pdev) if (IS_ERR(common->base)) return PTR_ERR(common->base); - /* enable temperature comparation */ - rcar_thermal_common_write(common, ENR, 0x00030303); - idle = 0; /* polling delaye is not needed */ } @@ -450,8 +448,15 @@ static int rcar_thermal_probe(struct platform_device *pdev) rcar_thermal_irq_enable(priv); list_move_tail(&priv->list, &common->head); + + /* update ENR bits */ + enr_bits |= 3 << (i * 8); } + /* enable temperature comparation */ + if (irq) + rcar_thermal_common_write(common, ENR, enr_bits); + platform_set_drvdata(pdev, common); dev_info(dev, "%d sensor probed\n", i); -- 2.4.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
