From: Heiner Kallweit Date: Fri, 21 Feb 2025 20:29:23 +0000 (+0100) Subject: i2c: i801: Move i801_wait_intr and i801_wait_byte_done in the code X-Git-Tag: v6.15-rc1~74^2~1^2~14 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e5befb5b01bc6b570c47a421284ca5193d36280d;p=linux-2.6-block.git i2c: i801: Move i801_wait_intr and i801_wait_byte_done in the code Move both functions to avoid forward declarations in a subsequent patch. Signed-off-by: Heiner Kallweit Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/a60ee54b-c5e8-4bdb-9f1f-8889f4dcd114@gmail.com --- diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index a3d79a5ab570..9097bb9cdb9e 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -337,6 +337,40 @@ MODULE_PARM_DESC(disable_features, "Disable selected driver features:\n" "\t\t 0x10 don't use interrupts\n" "\t\t 0x20 disable SMBus Host Notify "); +/* Wait for BUSY being cleared and either INTR or an error flag being set */ +static int i801_wait_intr(struct i801_priv *priv) +{ + unsigned long timeout = jiffies + priv->adapter.timeout; + int status, busy; + + do { + usleep_range(250, 500); + status = inb_p(SMBHSTSTS(priv)); + busy = status & SMBHSTSTS_HOST_BUSY; + status &= STATUS_ERROR_FLAGS | SMBHSTSTS_INTR; + if (!busy && status) + return status & STATUS_ERROR_FLAGS; + } while (time_is_after_eq_jiffies(timeout)); + + return -ETIMEDOUT; +} + +/* Wait for either BYTE_DONE or an error flag being set */ +static int i801_wait_byte_done(struct i801_priv *priv) +{ + unsigned long timeout = jiffies + priv->adapter.timeout; + int status; + + do { + usleep_range(250, 500); + status = inb_p(SMBHSTSTS(priv)); + if (status & (STATUS_ERROR_FLAGS | SMBHSTSTS_BYTE_DONE)) + return status & STATUS_ERROR_FLAGS; + } while (time_is_after_eq_jiffies(timeout)); + + return -ETIMEDOUT; +} + static int i801_get_block_len(struct i801_priv *priv) { u8 len = inb_p(SMBHSTDAT0(priv)); @@ -453,40 +487,6 @@ static int i801_check_post(struct i801_priv *priv, int status) return result; } -/* Wait for BUSY being cleared and either INTR or an error flag being set */ -static int i801_wait_intr(struct i801_priv *priv) -{ - unsigned long timeout = jiffies + priv->adapter.timeout; - int status, busy; - - do { - usleep_range(250, 500); - status = inb_p(SMBHSTSTS(priv)); - busy = status & SMBHSTSTS_HOST_BUSY; - status &= STATUS_ERROR_FLAGS | SMBHSTSTS_INTR; - if (!busy && status) - return status & STATUS_ERROR_FLAGS; - } while (time_is_after_eq_jiffies(timeout)); - - return -ETIMEDOUT; -} - -/* Wait for either BYTE_DONE or an error flag being set */ -static int i801_wait_byte_done(struct i801_priv *priv) -{ - unsigned long timeout = jiffies + priv->adapter.timeout; - int status; - - do { - usleep_range(250, 500); - status = inb_p(SMBHSTSTS(priv)); - if (status & (STATUS_ERROR_FLAGS | SMBHSTSTS_BYTE_DONE)) - return status & STATUS_ERROR_FLAGS; - } while (time_is_after_eq_jiffies(timeout)); - - return -ETIMEDOUT; -} - static int i801_transaction(struct i801_priv *priv, int xact) { unsigned long result;