From: Boris BREZILLON Date: Tue, 8 Jan 2013 15:36:42 +0000 (+0100) Subject: pwm: atmel: add Timer Counter Block PWM driver X-Git-Tag: v3.9-rc1~77^2~13 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9421bade0765d8ffb86b8a99213b611278a3542a;p=pandora-kernel.git pwm: atmel: add Timer Counter Block PWM driver This patch adds a PWM driver based on Atmel Timer Counter Block. The Timer Counter Block is used in Waveform generator mode. A Timer Counter Block provides up to 6 PWM devices grouped by 2: * group 0 = PWM 0 and 1 * group 1 = PWM 2 and 3 * group 2 = PMW 4 and 5 PWM devices in a given group must be configured with the same period value. If a PWM device in a group tries to change the period value and the other device is already configured with a different value an error will be returned. This driver requires device tree support. The Timer Counter Block number used to create a PWM chip is given by the tc-block field in an "atmel,tcb-pwm" compatible node. This patch was tested on kizbox board (at91sam9g20 SoC) with pwm-leds. Signed-off-by: Boris BREZILLON Signed-off-by: Thierry Reding --- Reading git-diff-tree failed