| From | <> | Subject | RE: [PATCH 3.16 197/305] memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing | Date | Tue, 16 Aug 2016 07:34:59 +0000 |
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Ok No problem.
Sebastien
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-----Message d'origine----- De : Ben Hutchings [mailto:ben@decadent.org.uk] Envoyé : samedi 13 août 2016 19:43 À : linux-kernel@vger.kernel.org; stable@vger.kernel.org Cc : akpm@linux-foundation.org; Roger Quadros; Ocquidant, Sebastien Objet : [PATCH 3.16 197/305] memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
3.16.37-rc1 review patch. If anyone has any objections, please let me know.
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From: "Ocquidant, Sebastien" <sebastienocquidant@eaton.com>
commit 8f50b8e57442d28e41bb736c173d8a2490549a82 upstream.
In the omap gpmc driver it can be noticed that GPMC_CONFIG4_OEEXTRADELAY is overwritten by the WEEXTRADELAY value from the device tree and GPMC_CONFIG4_WEEXTRADELAY is not updated by the value from the device tree.
As a consequence, the memory accesses cannot be configured properly when the extra delay are needed for OE and WE.
Fix the update of GPMC_CONFIG4_WEEXTRADELAY with the value from the device tree file and prevents GPMC_CONFIG4_OEXTRADELAY being overwritten by the WEXTRADELAY value from the device tree.
Signed-off-by: Ocquidant, Sebastien <sebastienocquidant@eaton.com> Signed-off-by: Roger Quadros <rogerq@ti.com> [bwh: Backported to 3.16: adjust filename] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- arch/arm/mach-omap2/gpmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -274,7 +274,7 @@ static void gpmc_cs_bool_timings(int cs, gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG4, GPMC_CONFIG4_OEEXTRADELAY, p->oe_extra_delay); gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG4, - GPMC_CONFIG4_OEEXTRADELAY, p->we_extra_delay); + GPMC_CONFIG4_WEEXTRADELAY, p->we_extra_delay); gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG6, GPMC_CONFIG6_CYCLE2CYCLESAMECSEN, p->cycle2cyclesamecsen);
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