From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Vaussard Subject: [PATCH v2 6/6] can: sja1000: of: add reg-io-width property for 8, 16 and 32-bit register access Date: Fri, 31 Jan 2014 11:35:13 +0100 Message-ID: <1391164513-11529-7-git-send-email-florian.vaussard@epfl.ch> References: <1391164513-11529-1-git-send-email-florian.vaussard@epfl.ch> Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, florian.vaussard@epfl.ch To: Wolfgang Grandegger , Marc Kleine-Budde Return-path: In-Reply-To: <1391164513-11529-1-git-send-email-florian.vaussard@epfl.ch> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Add the 'reg-io-width' property for 8, 16 and 32-bit access, like what is currently done with IORESOURCE_MEM_{8,16,32}BIT for non-OF boot. Signed-off-by: Florian Vaussard --- drivers/net/can/sja1000/sja1000_platform.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/sja1000/sja1000_platform.c b/drivers/net/can/sja1000/sja1000_platform.c index 96a92a1..62ebc3d 100644 --- a/drivers/net/can/sja1000/sja1000_platform.c +++ b/drivers/net/can/sja1000/sja1000_platform.c @@ -103,8 +103,17 @@ static void sp_populate_of(struct sja1000_priv *priv, struct device_node *of) int err; u32 prop; - priv->read_reg = sp_read_reg8; - priv->write_reg = sp_write_reg8; + of_property_read_u32(of, "reg-io-width", &prop); + if (prop == 4) { + priv->read_reg = sp_read_reg32; + priv->write_reg = sp_write_reg32; + } else if (prop == 2) { + priv->read_reg = sp_read_reg16; + priv->write_reg = sp_write_reg16; + } else { + priv->read_reg = sp_read_reg8; + priv->write_reg = sp_write_reg8; + } err = of_property_read_u32(of, "nxp,external-clock-frequency", &prop); if (!err) -- 1.8.1.2