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  1. 30 6月, 2013 1 次提交
  3. 28 6月, 2013 1 次提交
  5. 25 6月, 2013 1 次提交
    • S
      pinctrl: st: Add pinctrl and pinconf support. · 701016c0
      由 Srinivas KANDAGATLA 提交于 
      This patch add pinctrl support to ST SoCs.

About hardware:
ST Set-Top-Box parts have two blocks called PIO and PIO-mux which handle
pin configurations.

Each multi-function pin is controlled, driven and routed through the PIO
multiplexing block. Each pin supports GPIO functionality (ALT0) and
multiple alternate functions(ALT1 - ALTx) that directly connect the pin
to different hardware blocks. When a pin is in GPIO mode, Output Enable
(OE), Open Drain(OD), and Pull Up (PU) are driven by the related PIO
block. Otherwise the PIO multiplexing block configures these parameters
and retiming the signal.

About driver:
This pinctrl driver manages both PIO and PIO-mux block using pinctrl,
pinconf, pinmux, gpio subsystems. All the pinctrl related config
information can only come from device trees.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>
      701016c0
  7. 12 6月, 2013 1 次提交
    • S
      regmap: Add regmap_field APIs · 67252287
      由 Srinivas Kandagatla 提交于 
      It is common to access regmap registers at bit level, using
regmap_update_bits or regmap_read functions, however the end user has to
take care of a mask or shifting. This becomes overhead when such use
cases are high. Having a common function to do this is much convenient
and less error prone.

The idea of regmap_field is simple, regmap_field gives a logical
structure to bits of the regmap register, and the driver can use this
logical entity without the knowledge of the bit positions and masks all
over the code. This way code looks much neat and it need not handle the
masks, shifts every time it access the those entities.

With this new regmap_field_read/write apis the end user can setup a
regmap field using regmap_field_init and use the return regmap_field to
read write the register field without worrying about the masks or
shifts.

Also this apis will be useful for drivers which are based on regmaps,
like some clocks or pinctrls which can work on the regmap_fields
directly without having to worry about bit positions.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: NMark Brown <broonie@linaro.org>
      67252287
  9. 09 6月, 2013 1 次提交
    • G
      irqchip: Return -EPERM for reserved IRQs · d94ea3f6
      由 Grant Likely 提交于 
      The irqdomain core will report a log message for any attempted map call
that fails unless the error code is -EPERM. This patch changes the
Versatile irq controller drivers to use -EPERM because it is normal for
a subset of the IRQ inputs to be marked as reserved on the various
Versatile platforms.
Signed-off-by: NGrant Likely <grant.likely@linaro.org>
      d94ea3f6
  11. 08 6月, 2013 2 次提交
  13. 07 6月, 2013 4 次提交
  15. 05 6月, 2013 29 次提交