Versal EEMI APIs uses clock device ID which is combination of class,
subclass, type and clock index (e.g. 0x8104006 in which 0-13 bits are
for index(6 in given example), 14-19 bits are for clock type (i.e pll,
out or ref, 1 in given example), 20-25 bits are for subclass which is
nothing but clock type only), 26-32 bits are for device class, which
is clock(0x2) for all clocks) while zynqmp firmware uses clock ID
which is index only (e.g 0, 1, to n, where n is max_clock id).
To use zynqmp clock driver for versal platform also, extend use
of QueryAttribute API to fetch device class, subclass and clock type
to create clock device ID. In case of zynqmp this attributes would be
0 only, so there won't be any effect on clock id as it would use
clock index only.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Fix memory allocation and use struct_size() in kzalloc(). This also
fixes the allocation size to be correct, and smaller, because before we
were allocating a bunch of sizeof(struct clk_hw_onecell_data) structures
for each struct clk_hw we needed.
Fixes: 3fde0e16d0 ("drivers: clk: Add ZynqMP clock driver")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
[sboyd@kernel.org: Expand commit text]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The > comparison should be >= to prevent reading beyond the end of the
clock[] array.
(The clock[] array is allocated in zynqmp_clk_setup() and has
clock_max_idx elements.)
Fixes: 3fde0e16d0 ("drivers: clk: Add ZynqMP clock driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Return proper error code in case query for fixed factor
parameter fails. This also fixes build warning for set
but not used variable 'ret'.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Fixes: 3fde0e16d0 ("drivers: clk: Add ZynqMP clock driver")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch adds CCF compliant clock driver for ZynqMP.
Clock driver queries supported clock information from
firmware and regiters pll and output clocks with CCF.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Tejas Patel <tejasp@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Acked-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
