Rename bit definition macros to reflect keyboard registers clearly thus
being more readable.
Signed-off-by: NShiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

All SPEAr keyboard registers are 32 bit wide and are word aligned. This
patch aligns all io access to be word size using relaxed version of
readl/writel.
Signed-off-by: NShiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This patch is to disable device wakeup while removing keyboard.
Signed-off-by: NVipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This adds simple DT bindings for spear-keyboard controller.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Change matrix-keymap helper to be out-of-line, like sparse keymap,
allow the helper perform basic keymap validation and return errors,
and prepare for device tree support.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Thaw and poweroff routines are missing for spear-keyboard. They are
required for:
- Error case scenarios during freeze
- Using test features, of hibernate.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Let platform pass mode information to keyboard driver according to which
it configures itself. The mode can be
 - KEYPAD_9x9     0
 - KEYPAD_6x6     1
 - KEYPAD_2x2     2
Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Commit 940ab889 introduced a new macro to
save some platform_driver boilerplate code. Use it.
Signed-off-by: NJJ Ding <dgdunix@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We should return IRQ_NONE from interrupt handler in case keyboard
does not report DATA_AVAIL condition.
Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>