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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-313c50c70c9sm21927368eec.29.2026.07.12.22.03.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Jul 2026 22:03:58 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , Greg Kroah-Hartman , rafael@kernel.org Cc: Danilo Krummrich , linux-kernel@vger.kernel.org, driver-core@lists.linux.dev, bui duc phuc Subject: [PATCH 2/2] regcache: Mark cache dirty if selector register rewrite fails Date: Mon, 13 Jul 2026 12:03:12 +0700 Message-ID: <20260713050312.38729-3-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260713050312.38729-1-phucduc.bui@gmail.com> References: <20260713050312.38729-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: driver-core@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc After a successful cache synchronization, regcache_sync() clears cache_dirty. If rewriting a selector register later fails, the cache and hardware become inconsistent while the cache still appears clean. Update cache_dirty to reflect the cache and hardware state when selector register rewriting fails. Signed-off-by: bui duc phuc --- drivers/base/regmap/regcache.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 040fd60c0d59..96cdae25b9c4 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -465,6 +465,7 @@ int regcache_sync(struct regmap *map) selector_ret = _regmap_write(map, this->selector_reg, i); if (selector_ret != 0) { + map->cache_dirty = true; dev_err(map->dev, "Failed to write %x = %x: %d\n", this->selector_reg, i, selector_ret); break; -- 2.43.0